Update Ubuntu Workflow

Author: albertov19

.github/workflows/check-mkdocs-build.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   build-docs-site:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v5
@@ -43,4 +43,4 @@ jobs:
           # change destination build folder in mkdocs YAML to local site/
           sed -i 's/site_dir.*/site_dir: site/' mkdocs.yml
           # build project
-          python3 -m mkdocs build
+          python3 -m mkdocs build