build: Decoupled SonarQube task from full code build

The 'sonar' task depends on compile tasks. This behavior is now deprecated and will be removed in version 5.x. To avoid implicit compilation, set property 'sonar.gradle.skipCompile' to 'true' and make sure your project is compiled, before analysis has started

build.gradle

@@ -55,5 +55,6 @@ sonarqube {
         sonar.coverage.jacoco.xmlReportPaths = "**/build/reports/coverage/**/debug/report.xml"
         sonar.exclusions = '**/src/main/assets/**/*.*'
         sonar.test.exclusions = '**/src/test/**/*.*,**/src/androidTest/**/*.*'
+        sonar.gradle.skipCompile = true
     }
 }