feat: bump rlespinasse/github-slug-action from 4 to 5

Bumps [rlespinasse/github-slug-action](https://github.com/rlespinasse/github-slug-action) from 4 to 5.
- [Release notes](https://github.com/rlespinasse/github-slug-action/releases)
- [Commits](v4...v5)

---
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/v5-tests-and-release.yml

@@ -17,7 +17,7 @@ jobs:
         uses: ./
 
       - name: Load using v4
-        uses: rlespinasse/github-slug-action@v4
+        uses: rlespinasse/github-slug-action@v5
         with:
           prefix: V4_
 
@@ -103,7 +103,7 @@ jobs:
         uses: ./this-action
 
       - name: Load using v4
-        uses: rlespinasse/github-slug-action@v4
+        uses: rlespinasse/github-slug-action@v5
         with:
           prefix: V4_