chore: update devDependencies and add pretest script

- Added a pretest script to clean up test results using trash-cli.
- Updated @angular-devkit/build-angular from 19.2.6 to ^19.2.9.
- Updated @nx/angular from 20.4.6 to ^20.8.1.

azure-pipelines.yml

@@ -54,13 +54,13 @@ jobs:
       - task: PublishTestResults@2
         displayName: Publish Test results
         inputs:
-          testResultsFiles: '**/TESTS*.xml'
+          testResultsFiles: '**/TESTS-*.xml'
           searchFolder: $(Build.StagingDirectory)/testresults
           testResultsFormat: JUnit
           mergeTestResults: false
           failTaskOnFailedTests: true
         condition: always()
-      - task: PublishCodeCoverageResults@1
+      - task: PublishCodeCoverageResults@2
         displayName: Publish code Coverage
         inputs:
           codeCoverageTool: Cobertura