Update maven-ci.yml

Removed if clause for building code in main codebase from the CI pipeline.

.github/workflows/maven-ci.yml

@@ -49,14 +49,10 @@ jobs:
           ${{ runner.os }}-maven-
     # Some tests need screen access
     - name: Install xvfb
-      run: sudo apt-get install xvfb
+      run: sudo apt-get install -y xvfb
     # SonarQube scan does not work for forked repositories
     # See https://jira.sonarsource.com/browse/MMF-1371
-    - name: Build with Maven
-      if: github.ref != 'refs/heads/master'
-      run: xvfb-run mvn clean verify
     - name: Build with Maven and run SonarQube analysis
-      if: github.ref == 'refs/heads/master'
       run: xvfb-run mvn clean verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar
       env:
         # These two env variables are needed for sonar analysis