Remove OS specification from test workflow

Author: Bayheck

.github/workflows/test-functional-local-edge.yml

@@ -15,7 +15,6 @@ jobs:
   test:
     uses: ./.github/workflows/test-functional.yml
     with:
-      os: 'windows-latest'
       matrix-jobs-count: 5
       timeout: 45
       test-script: 'npx gulp test-functional-local-headless-edge-run --steps-as-tasks'