tooling: add SonarCloud configuration file (#378)

To get more control on sources and Python versions

sonar-project.properties

@@ -0,0 +1,23 @@
+sonar.projectKey=Guts_qgis-deployment-cli
+
+# Because Community Edition doesn't support multiple branches,
+# you should only analyze your main branch.
+# You can restrict analysis to your main branch by adding the branch name to the only parameter.
+# only=main
+
+# Python versions
+sonar.python.version=3.10, 3.11, 3.12
+
+# Path is relative to the sonar-project.properties file. Replace "\" by "/" on Windows.
+sonar.sources=qgis_deployment_toolbelt
+
+# Encoding of the source code. Default is default system encoding
+sonar.sourceEncoding=UTF-8
+
+# Python configuration
+sonar.language=python3
+sonar.python.file.suffixes=py
+sonar.python.coverage.reportPaths=coverage.xml
+sonar.python.xunit.reportPath=junit/test-results.xml
+sonar.coverage.exclusions=**__init__**,tests/**,*.py,docs/**
+sonar.exclusions=*.xml,doc/**