Fix GH workflows

Author: hpehl

.github/workflows/release.yml

@@ -15,14 +15,14 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
           cache: maven
       - run: $MVN package
         working-directory: bom
       - uses: actions/setup-java@v5
         with: # running setup-java again overwrites the settings.xml
-          java-version: 17
+          java-version: 21
           distribution: temurin
           server-id: central
           server-username: CENTRAL_USERNAME
@@ -46,13 +46,13 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
           cache: maven
       - run: $MVN package
       - uses: actions/setup-java@v5
         with: # running setup-java again overwrites the settings.xml
-          java-version: 17
+          java-version: 21
           distribution: temurin
           server-id: central
           server-username: CENTRAL_USERNAME

.github/workflows/samples.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
           cache: maven
       - run: $MVN install

.github/workflows/snapshot.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
           cache: maven
           server-id: central
@@ -37,7 +37,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
           cache: maven
           server-id: central

.github/workflows/verify.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
           cache: maven
       - run: $MVN install