Update actions/cache action to v5

Author: pschichbot

.github/workflows/publish.yaml

@@ -15,7 +15,7 @@ jobs:
           server-id: ossrh
           server-username: MAVEN_USERNAME
           server-password: MAVEN_PASSWORD
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}