Bump actions/cache from 3 to 4 (#68)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/maven-core-cm.yml

@@ -34,7 +34,7 @@ jobs:
         with:
           java-version: ${{ matrix.jdk }}
           distribution: 'zulu'
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}