Bump rlespinasse/github-slug-action from 4.5.0 to 5.0.0

Bumps [rlespinasse/github-slug-action](https://github.com/rlespinasse/github-slug-action) from 4.5.0 to 5.0.0.
- [Release notes](https://github.com/rlespinasse/github-slug-action/releases)
- [Commits](rlespinasse/github-slug-action@797d688...aba9f8d)

---
updated-dependencies:
- dependency-name: rlespinasse/github-slug-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/sitedocs.yml

@@ -20,7 +20,7 @@ jobs:
       repository-projects: write
     steps:
     - name: Inject slug/short variables
-      uses: rlespinasse/github-slug-action@797d68864753cbceedc271349d402da4590e6302 # v4.5.0
+      uses: rlespinasse/github-slug-action@aba9f8db6ef36e0733227a62673d6592b1f430ea # v5.0.0
     - name: Checkout tycho code
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with: