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

quote multiple path patterns separated by commas unquote

Author: rayrobdod

.github/workflows/publish-ghpages.yml

@@ -27,10 +27,10 @@ jobs:
           **/project/build.properties
           **/project/**.scala
           **/project/**.sbt
-        key: sbt-site-${{ hashFiles('**/*.sbt,**/project/build.properties,**/project/**.scala,**/project/**.sbt') }}
+        key: sbt-site-${{ hashFiles('**/*.sbt','**/project/build.properties','**/project/**.scala','**/project/**.sbt') }}
         restore-keys: |
           sbt-site-
-          setup-java-Linux-sbt-${{ hashFiles('**/*.sbt,**/project/build.properties,**/project/**.scala,**/project/**.sbt') }}
+          setup-java-Linux-sbt-${{ hashFiles('**/*.sbt','**/project/build.properties','**/project/**.scala','**/project/**.sbt') }}
           setup-java-Linux-sbt-
     - uses: actions/setup-java@v4
       with: