chore: exclude version file from coverage

Signed-off-by: Arjun Rajappa <arjun.rajappa@ibm.com>

Author: arjun-rajappa

sonar-project.properties

@@ -5,7 +5,7 @@ sonar.sources=lib
 sonar.tests=test
 sonar.test.inclusions=test/**/*
 sonar.ruby.coverage.reportPaths=coverage/coverage.json
-sonar.coverage.exclusions=bin/*,examples/*,extras/*
+sonar.coverage.exclusions=bin/*,examples/*,extras/*,lib/instana/version.rb
 sonar.links.homepage=https://github.com/instana/ruby-sensor/
 sonar.links.ci=https://circleci.com/gh/instana/ruby-sensor
 sonar.links.issue=https://github.com/instana/ruby-sensor/issues