chore(deps): bump the ci-dependencies group across 1 directory with 2 updates

Bumps the ci-dependencies group with 2 updates in the / directory: [rlespinasse/github-slug-action](https://github.com/rlespinasse/github-slug-action) and [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer).


Updates `rlespinasse/github-slug-action` from 5.1.0 to 5.2.0
- [Release notes](https://github.com/rlespinasse/github-slug-action/releases)
- [Commits](rlespinasse/github-slug-action@v5.1.0...v5.2.0)

Updates `sigstore/cosign-installer` from 3.8.2 to 3.9.2
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@v3.8.2...v3.9.2)

---
updated-dependencies:
- dependency-name: rlespinasse/github-slug-action
  dependency-version: 5.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci-dependencies
- dependency-name: sigstore/cosign-installer
  dependency-version: 3.9.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

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

@@ -25,7 +25,7 @@ jobs:
         with:
           fetch-depth: 1
       - name: Inject slug/short variables
-        uses: rlespinasse/github-slug-action@v5.1.0
+        uses: rlespinasse/github-slug-action@v5.2.0
       - 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@v3.9.2
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         if: github.event_name != 'pull_request'