Update actions/cache action to v4

Author: renovate[bot]

.github/workflows/build.yml

@@ -23,13 +23,13 @@ jobs:
           server-username: MAVEN_USERNAME
           server-password: MAVEN_PASSWORD
       - name: Cache SonarCloud packages
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.sonar/cache
           key: ${{ runner.os }}-sonar
           restore-keys: ${{ runner.os }}-sonar
       - name: Cache Maven packages
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.m2
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}