fix: avoid duplicate SonarQube test indexing

Jenkinsfile

@@ -281,24 +281,19 @@ pipeline {
         script {
             def scannerHome = tool 'sonar-scanner'
 
+            withEnv(["SCANNER_HOME=${scannerHome}"]) {
                 withSonarQubeEnv('sonarqube') {
-                withCredentials([
-                    string(
-                        credentialsId: 'sonarqube-token',
-                        variable: 'SONAR_TOKEN'
-                    )
-                ]) {
-                    sh """
-                        ${scannerHome}/bin/sonar-scanner \
+                    sh '''
+                        "${SCANNER_HOME}/bin/sonar-scanner" \
                           -Dsonar.projectKey=the-tip-top \
                           -Dsonar.projectName=THE-TIP-TOP \
                           -Dsonar.sources=backend/src,frontend/src \
                           -Dsonar.tests=backend/tests,frontend/src/test \
+                          -Dsonar.exclusions=frontend/src/test/**,backend/tests/**,**/node_modules/**,**/coverage/**,**/dist/** \
+                          -Dsonar.test.inclusions=backend/tests/**,frontend/src/test/** \
                           -Dsonar.javascript.lcov.reportPaths=backend/coverage/lcov.info,frontend/coverage/lcov.info \
-                          -Dsonar.exclusions=**/node_modules/**,**/coverage/**,**/dist/** \
-                          -Dsonar.sourceEncoding=UTF-8 \
-                          -Dsonar.token="${SONAR_TOKEN}"
-                    """
+                          -Dsonar.sourceEncoding=UTF-8
+                    '''
                 }
             }
         }