chore(deps): bump the mkdocs-dependencies group with 4 updates

[dependabot]

Bumps the mkdocs-dependencies group with 4 updates: certifi, click, pymdown-extensions and regex.

Updates certifi from 2026.5.20 to 2026.6.17

Commits

• d0ac52f 2026.06.17 (#418)
• d46de62 Bump actions/checkout from 6.0.2 to 6.0.3 (#417)
• 6c183ec fix: update Requests docs link to canonical URL (#415)
• 36e3568 Bump dessant/lock-threads from 6.0.0 to 6.0.2
• See full diff in compare view

Updates click from 8.4.1 to 8.4.2

Release notes

Sourced from click's releases.

8.4.2

This is the Click 8.4.1 fix release, which fixes bugs but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/click/8.4.2/ Changes: https://click.palletsprojects.com/page/changes/#version-8-4-2 Milestone: https://github.com/pallets/click/milestone/34

• Fix Fish shell completion broken in 8.4.0 by #3126. Newlines and tabs in option help text are now escaped, keeping the original completion format while still supporting multi-line help. #3502 #3043 #3504 #3508
• Deprecated commands and options with empty or missing help text no longer render a stray leading space before the (DEPRECATED) label. #3509
• A {class}Group with invoke_without_command=True marks its subcommand as optional in the usage help, showing [COMMAND] instead of COMMAND. #3059 #3507
• echo_via_pager flushes after each write, so passing a generator streams output to the pager incrementally instead of staying hidden until the pipe buffer fills. #3242 #2542 #3534
• echo_via_pager and get_pager_file no longer close a borrowed stdout stream when no external pager runs, completing the partial I/O operation on closed file fix from #3482. #3449 #3533
• Fix CLI usage symopsis for optional arguments producing double square brackets [[a|b|c]]... whose type already brackets their metavar. #3578
• {func}version_option resolves a package_name that does not match an installed distribution as an import (top-level module) name via {func}importlib.metadata.packages_distributions. Packages whose top-level module name differs from their distribution name (PIL vs Pillow, jwt vs PyJWT) no longer raise RuntimeError out of the box. #2331 #1884 #3125 #3582

Changelog

Sourced from click's changelog.

Version 8.4.2

Released 2026-06-24

• Fix Fish shell completion broken in 8.4.0 by {pr}3126. Newlines and tabs in option help text are now escaped, keeping the original completion format while still supporting multi-line help. {issue}3502 {issue}3043 {pr}3504 {pr}3508
• Deprecated commands and options with empty or missing help text no longer render a stray leading space before the (DEPRECATED) label. {pr}3509
• A {class}Group with invoke_without_command=True marks its subcommand as optional in the usage help, showing [COMMAND] instead of COMMAND. {issue}3059 {pr}3507
• echo_via_pager flushes after each write, so passing a generator streams output to the pager incrementally instead of staying hidden until the pipe buffer fills. {issue}3242 {issue}2542 {pr}3534
• echo_via_pager and get_pager_file no longer close a borrowed stdout stream when no external pager runs, completing the partial I/O operation on closed file fix from {pr}3482. {issue}3449 {pr}3533
• Fix CLI usage symopsis for optional arguments producing double square brackets [[a|b|c]]... whose type already brackets their metavar. {pr}3578
• {func}version_option resolves a package_name that does not match an installed distribution as an import (top-level module) name via {func}importlib.metadata.packages_distributions. Packages whose top-level module name differs from their distribution name (PIL vs Pillow, jwt vs PyJWT) no longer raise RuntimeError out of the box. {issue}2331 {issue}1884 {issue}3125 {pr}3582

Commits

• b2e30a1 Release version 8.4.2
• 7a16b20 Fix package_name resolution when module differs from distribution name (#3582)
• bec5928 Fix package_name resolution when top-level module differs from distribution...
• 916883a Fix tests to not rely on -Wdefault option (#3591)
• 09195f6 Fix double-bracketing of choices in synopsis (#3578)
• 1557e26 Check for warning exception with idiomatic context manager
• d9ff133 Static typing improvements in click.shell_completion (#3460)
• 762c97e Fix double-bracketing of choices in synopsis
• 8929d39 Convert changes to markdown. (#3559)
• 237be50 Move changes headings down a level.
• Additional commits viewable in compare view

Updates pymdown-extensions from 10.21.3 to 11.0

Release notes

Sourced from pymdown-extensions's releases.

11.0

• BREAK: B64: Restricts relative links to base_path by default. Can be disabled by setting new restrict_path option to False. The new root_path can be specified if paths are desired to be restricted to a different location separate base_path which is also used as a relative base for image paths.
• NEW: Drop Python 3.9 support.
• FIX: Tabbed: Fix issue where an empty title would cause an exception.

Commits

• 6d0097b Update changelog
• f4808ea Bump version and update changelog
• a290074 Update JS doc deps
• edce355 Merge commit from fork
• 9fb9643 Update Python type deps
• 299a129 Docs: Update JS deps
• 367d965 Drop Python 3.9 (#2902)
• 19ec936 Fix issue with empty titles and Tabbed (#2901)
• 4868783 Fix npm option
• 18a21f5 zensical config should be stored in sdist
• Additional commits viewable in compare view

Updates regex from 2026.5.9 to 2026.6.28

Changelog

Sourced from regex's changelog.

Version: 2026.6.28

Git issue 604: regex fails on free-threading python because setlocale is not thread-safe

Version: 2026.5.9

Reverse matching with full unicode casefolding could lead to out-of-range string indexes.

Version: 2026.4.4

A fix for older Python versions before free-threading was  supported.

Version: 2026.4.3

More fixes for free-threading.

Version: 2026.3.32

Fixed segfault.

Version: 2026.3.31

Fixed bug again.

Version: 2026.3.30

Fixed bug.

Version: 2026.3.28

Fixed version.

Version: 2026.3.27

Various fixes, including ones to improve free-threading support.

Version: 2026.2.28

Replaced atomic operations with mutex on pattern object for free-threaded Python.

Version: 2026.2.26

PR [#598](https://github.com/mrabarnett/mrab-regex/issues/598): Fix race condition in storage caching with atomic operations.
Replaced use of PyUnicode_GET_LENGTH with PyUnicode_GetLength.

Version: 2026.2.19

Added \z as alias of \Z, like in re module.

... (truncated)

Commits

• b18daa6 Git issue 604: regex fails on free-threading python because setlocale is not ...
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