update actions

make a test action that just looks tries to build the site without deploying

.github/workflows/site.yml

@@ -1,4 +1,4 @@
-name: site
+name: site deploy
 on:
   push:
     branches:
@@ -14,13 +14,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: 3.x
-      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
-      - uses: actions/cache@v4
-        with:
-          key: mkdocs-material-${{ env.cache_id }}
-          path: .cache
-          restore-keys: |
-            mkdocs-material-
+          cache: 'pip'
       - run: pip install mkdocs-material plantuml-markdown
       - name: Deploy site
         run: mkdocs gh-deploy --force

.github/workflows/test.yml

@@ -0,0 +1,17 @@
+name: site test
+on:
+  pull_request:
+permissions:
+  contents: write
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+          cache: 'pip'
+      - run: pip install mkdocs-material plantuml-markdown
+      - name: test site
+        run: mkdocs build