Exclude class fixture files from repo linter

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: MariusStorhaug

.github/workflows/Linter.yml

@@ -28,6 +28,7 @@ jobs:
         uses: super-linter/super-linter@4ce20838b8ab83717e78138c5b3a1407148e0918 # v8.7.0
         env:
           GITHUB_TOKEN: ${{ github.token }}
+          FILTER_REGEX_EXCLUDE: 'tests/src(TestRepo|WithManifestTestRepo)/src/classes/public/.*\.ps1$'
           VALIDATE_BIOME_FORMAT: false
           VALIDATE_GITHUB_ACTIONS: false
           VALIDATE_JSCPD: false