ci: adjust sonar-project.properties conf

Remove sources and tests confs and add pipelines folder to exclusions.
Also the snapshot folder exclusion is redundant since they're inside a
test folders.

Refs: PT-2021

Author: nicobav

sonar-project.properties

@@ -1,11 +1,9 @@
-sonar.projectKey = City-of-Helsinki_kultus-api
-sonar.organization = city-of-helsinki
-sonar.python.version = 3.12
-sonar.python.coverage.reportPaths = coverage.xml
-sonar.sources = .
-sonar.exclusions = **/migrations/*,**/snapshots/*
-sonar.tests = .
-sonar.test.inclusions = **/tests/**/*
+sonar.projectKey=City-of-Helsinki_kultus-api
+sonar.organization=city-of-helsinki
+sonar.python.version=3.12
+sonar.python.coverage.reportPaths=coverage.xml
+sonar.exclusions=**/migrations/*,pipelines/**/*
+sonar.test.inclusions=**/tests/**/*
 
 # Set up rule ignores (List of comma separated unique values, e.g. "e1,e2,e3"):
 sonar.issue.ignore.multicriteria=e1,e2,e3,e4,e5,e6,e7