build: CI add JDK 23 to the matrix and replace caching with one from setup-java GHA and remove unused releasing shell scripts

.github/workflows/ci.yml

@@ -14,8 +14,9 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, windows-latest, macos-latest ]
-        # Keep this list as: all supported LTS JDKs, the latest GA JDK, and the latest EA JDK (if possible)
-        java: [ 11, 17, 21, 22 ]
+        # Keep this list as: all supported LTS JDKs, the latest GA JDK, and optionally the latest EA JDK (if available).
+        # https://www.oracle.com/java/technologies/java-se-support-roadmap.html
+        java: [ 11, 17, 21, 23 ]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -24,12 +25,6 @@ jobs:
         with:
           distribution: temurin
           java-version: ${{ matrix.java }}
-      - name: Cache local Maven repository
-        uses: actions/cache@v4
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
+          cache: maven
       - name: Build with Maven
         run: mvn --batch-mode --no-transfer-progress verify