devonfw#1024: changed java version in github actions from 17 to 21

Author: jan-vcapgemini

.github/workflows/build-pr.yml

@@ -11,8 +11,8 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v1
         with:
-          java-version: '17'
+          java-version: '21'
       - name: Build project with Maven
         run: mvn -B -ntp -Dstyle.color=always install
       - name: Coveralls GitHub Action
-        uses: coverallsapp/[email protected]
+        uses: coverallsapp/[email protected]

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v1
         with:
-          java-version: '17'
+          java-version: '21'
       - name: Build project with Maven
         run: mvn -B -ntp -Dstyle.color=always install
       - name: Coveralls GitHub Action

.github/workflows/nightly-build.yml

@@ -72,7 +72,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v1
         with:
-          java-version: '17'
+          java-version: '21'
       - name: Download natives and build project
         uses: actions/download-artifact@v4
         with:

.github/workflows/release.yml

@@ -78,7 +78,7 @@ jobs:
       - name: Set up Apache Maven Central
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 21
           distribution: 'temurin'
           cache: 'maven'
           gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }} # Value of the GPG private key to import

.github/workflows/update-urls.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Set up Java
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 21
           distribution: 'temurin'
           cache: 'maven'
       - name: Build and run url updater