Updated mono docker version in pages-workflow to not be slim

Author: allRisc

.github/workflows/pages-workflow.yml

@@ -8,7 +8,7 @@ jobs:
   build-pages:
     runs-on: ubuntu-latest
     container:
-      image: mono:slim
+      image: mono:latest
       env:
         GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}