Fix: update GitHub Actions to use upload-artifact v4

Author: rustampulatov8

.github/workflows/dotnet-playwright.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup .NET
         uses: actions/setup-dotnet@v3
@@ -32,10 +32,7 @@ jobs:
         run: dotnet test --configuration Release --logger "trx;LogFileName=test_results.trx"
 
       - name: Upload Test Results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: playwright-test-results
           path: TestResults/
-
-      - name: Print working directory and files
-        run: ls -R