ci: use actions/setup-java temurin distribution

Adopt OpenJDK got moved to Eclipse Temurin and won't be updated anymore.
It is highly recommended to migrate workflows from adopt to temurin to
keep receiving software and security updates

See : https://blog.adoptopenjdk.net/2021/08/goodbye-adoptopenjdk-hello-adoptium/

.github/workflows/main.yml

@@ -40,7 +40,7 @@ jobs:
       uses: actions/setup-java@v3
       with:
         java-version: '8'
-        distribution: 'adopt'
+        distribution: 'temurin'
         cache: maven
 
     # ------------- Begin of : Build Steps -------------