java: Test and release against JDK 17 and 21

Author: mpkorstanje

.github/workflows/release-mvn.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
-          java-version: '11'
+          java-version: '17'
           cache: 'maven'
       - uses: cucumber/[email protected]
         with:

.github/workflows/test-java.yml

@@ -17,7 +17,7 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-        java: ['11', '17']
+        java: ['17', '21']
         include:
           - os: windows-latest
             java: '17'