chore: update sonar-project.properties to reconfigure sonarqube scanning. (#1584)

Co-authored-by: Confluent Jenkins Bot <[email protected]>

Author: ConfluentTools

sonar-project.properties

@@ -0,0 +1,7 @@
+### service-bot sonarqube plugin managed file
+sonar.coverage.exclusions=**/test/**/*,**/tests/**/*,**/mock/**/*,**/mocks/**/*,**/*mock*,**/*test*
+sonar.exclusions=**/*.pb.*,**/mk-include/**/*
+sonar.language=python
+sonar.projectKey=confluent-kafka-python
+sonar.python.coverage.reportPaths=**/coverage.xml
+sonar.sources=.