Upgraded to actions/setup-java@v4

Author: oharsta

.github/workflows/maven.yml

@@ -24,7 +24,7 @@ jobs:
     - uses: actions/setup-java@v5
       with:
         java-version: '21'
-        distribution: 'adopt'
+        distribution: 'temurin'
         cache: 'maven'
 
     - uses: actions/cache@v4