transform coverage.xml to sonar generic format xml
run fastlane unit test scan() with cobertura_xml: true
run command xsltproc cobertura-sonar-generic.xslt cobertura.xml > sonar-code-coverage.xml
-- sonar.properties --
sonar.language=swift sonar.cfamily.build-wrapper-output=sonar-reports sonar.sourceEncoding=UTF-8 sonar.objc.file.suffixes=.m,.h sonar.cfamily.threads=12 sonar.c.file.suffixes=- sonar.cpp.file.suffixes=- sonar.coverageReportPaths=sonar-reports/sonar-code-coverage.xml
alternative to xccov-to-sonarqube-generic.sh script and resolves the issue and slowness with warnings
Requested but did not find extension point with identifier Xcode.IDEFoundation.IDEResultKitSerializationConverter