Bump the ci-dependencies group across 1 directory with 5 updates

Bumps the ci-dependencies group with 5 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [actions/checkout](https://github.com/actions/checkout) | `4` | `6` |
| [actions/setup-node](https://github.com/actions/setup-node) | `4` | `6` |
| [actions/cache](https://github.com/actions/cache) | `4` | `5` |
| [rlespinasse/github-slug-action](https://github.com/rlespinasse/github-slug-action) | `5.1.0` | `5.4.0` |
| [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) | `3.8.2` | `4.0.0` |



Updates `actions/checkout` from 4 to 6
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v6)

Updates `actions/setup-node` from 4 to 6
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v4...v6)

Updates `actions/cache` from 4 to 5
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v5)

Updates `rlespinasse/github-slug-action` from 5.1.0 to 5.4.0
- [Release notes](https://github.com/rlespinasse/github-slug-action/releases)
- [Commits](rlespinasse/github-slug-action@v5.1.0...v5.4.0)

Updates `sigstore/cosign-installer` from 3.8.2 to 4.0.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@v3.8.2...v4.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci-dependencies
- dependency-name: actions/setup-node
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci-dependencies
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci-dependencies
- dependency-name: rlespinasse/github-slug-action
  dependency-version: 5.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci-dependencies
- dependency-name: sigstore/cosign-installer
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -19,17 +19,17 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
       - name: Setup Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 22
 
       - name: Cache dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
@@ -53,11 +53,11 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Setup Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 22
       - name: Get package version

.github/workflows/docker-build-push.yaml

@@ -21,11 +21,11 @@ jobs:
           echo "OWNER_LOWERCASE=${OWNER,,}" >> ${GITHUB_ENV}
         env:
           OWNER: "${{ github.repository_owner }}"
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
       - name: Inject slug/short variables
-        uses: rlespinasse/github-slug-action@v5.1.0
+        uses: rlespinasse/github-slug-action@v5.4.0
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
@@ -37,7 +37,7 @@ jobs:
             network=host
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@v3.8.2
+        uses: sigstore/cosign-installer@v4.0.0
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         if: github.event_name != 'pull_request'