Disable fail fast

Test on Java 21 and latest Ubuntu
Updated pipeline components

.github/workflows/maven.yml

@@ -9,23 +9,25 @@ jobs:
   build:
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         # test against latest update of each major Java version:
-        java: [ 8, 11, 17 ]
+        java: [ 8, 11, 17, 21]
         # test against major operating systems
-        os: [ubuntu-20.04, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest]
     name: Java ${{ matrix.java }} on ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/cache@v1
+      - uses: actions/checkout@v4
+      - uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
           restore-keys: |
             ${{ runner.os }}-maven-
       - name: Setup java
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v4
         with:
           java-version: ${{ matrix.java }}
+          distribution: 'temurin'
       - name: Build with Maven
         run: mvn -B clean package