Bump madhead/semver-utils from 3 to 4

Bumps [madhead/semver-utils](https://github.com/madhead/semver-utils) from 3 to 4.
- [Release notes](https://github.com/madhead/semver-utils/releases)
- [Commits](madhead/semver-utils@v3...v4)

---
updated-dependencies:
- dependency-name: madhead/semver-utils
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/ci.yaml

@@ -106,7 +106,7 @@ jobs:
 
       - name: Compute SemVer parts of Keycloak version
         id: keycloak_semver
-        uses: madhead/semver-utils@v3
+        uses: madhead/semver-utils@v4
         with:
           version: ${{ matrix.env.KEYCLOAK_VERSION }}