Bump actions

Author: bowbahdoe

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Set up Java
         uses: actions/setup-java@v3
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'adopt'
       - name: Publish package
         env:

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'adopt'
       - name: Test with Maven
         env: