Fix: Downgrade version of Ubuntu used for linkspector workflow

Author: alexdewar

.github/workflows/check-links.yml

@@ -7,7 +7,7 @@ on:
 jobs:
   check-links:
     name: Linkspector
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Run linkspector