chore(deps): update docker [skip pre-commit.ci]

[renovate]

This PR contains the following updates:

Package	Update	Change	References	OpenSSF
postgres	digest	3430fe1 → 6f30057
valkey/valkey	digest	68677f8 → 84c96f4	source

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Configuration

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👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

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[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Snapshot Warnings

⚠️: No snapshots were found for the head SHA 7be06b8.

Ensure that dependencies are being submitted on PR branches. Re-running this action after a short time may resolve the issue. See the documentation for more information and troubleshooting advice.

Scanned Files

None

[sentry]

❌ 2 Tests Failed:

Tests completed	Failed	Passed	Skipped
664	2	662	36

View the full list of 2 ❄️ flaky test(s)

tests/cache/test_backend.py::TestValkeyBackend::test_setex_called_when_ttl_sec_provided

Flake rate in main: 100.00% (Passed 0 times, Failed 36 times)

Stack Traces | 0.005s run time

tests/cache/test_backend.py:162: in test_setex_called_when_ttl_sec_provided
    assert args[2] == "v"
E   assert '"v"' == 'v'
E     
E     #x1B[0m#x1B[91m- v#x1B[39;49;00m#x1B[90m#x1B[39;49;00m
E     #x1B[92m+ "v"#x1B[39;49;00m#x1B[90m#x1B[39;49;00m

tests/cache/test_backend.py::TestValkeyBackend::test_string_value_stored_as_is

Flake rate in main: 100.00% (Passed 0 times, Failed 36 times)

Stack Traces | 0.008s run time

tests/cache/test_backend.py:128: in test_string_value_stored_as_is
    assert mock_client.set.call_args[0][1] == "plain"
E   assert '"plain"' == 'plain'
E     
E     #x1B[0m#x1B[91m- plain#x1B[39;49;00m#x1B[90m#x1B[39;49;00m
E     #x1B[92m+ "plain"#x1B[39;49;00m#x1B[90m#x1B[39;49;00m
E     ? +     +#x1B[90m#x1B[39;49;00m

To view more test analytics, go to the [Prevent Tests Dashboard](https://All Things Linux.sentry.io/prevent/tests/?preventPeriod=30d&integratedOrgName=allthingslinux&repository=tux&branch=renovate%2Fdocker)