[ci] Better caching via a new cache key in publish-ghpages

Author: rayrobdod

.github/workflows/publish-ghpages.yml

@@ -19,11 +19,23 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0
+    - name: Cache Sbt packages with different key
+      uses: actions/cache@v4
+      with:
+        path: |
+          **/*.sbt
+          **/project/build.properties
+          **/project/**.scala
+          **/project/**.sbt
+        key: sbt-site-${{ hashFiles('**/*.sbt,**/project/build.properties,**/project/**.scala,**/project/**.sbt') }}
+        restore-keys: |
+          sbt-site-
+          setup-java-Linux-sbt-${{ hashFiles('**/*.sbt,**/project/build.properties,**/project/**.scala,**/project/**.sbt') }}
+          setup-java-Linux-sbt-
     - uses: actions/setup-java@v4
       with:
         distribution: 'zulu'
         java-version: '17'
-        cache: 'sbt'
     - name: Setup Pages
       uses: actions/configure-pages@v4
     - name: Build site