Update workflow

from Universal-Omega/.github (Universal-Omega/.github@590b186)

Author: Universal-Omega

.github/workflows/mediawiki-tests.yml

@@ -85,7 +85,7 @@ jobs:
         with:
           access_token: ${{ github.token }}
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # /home/runner/cache/                               Cache
       # /home/runner/src/                                 Mediawiki installation