Bump actions/cache from 3 to 4 in the github-actions group (#19)

Author: dependabot[bot]

.github/workflows/build.yml

@@ -30,7 +30,7 @@ jobs:
           gpg-passphrase: MAVEN_GPG_PASSPHRASE
 
       - name: Cache SonarCloud packages
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.sonar/cache
           key: ${{ runner.os }}-sonar