Add GitHub Actions workflow for Copilot setup (#618)

Author: KrzysztofPajak

workflows/copilot-setup-steps.yml

@@ -0,0 +1,27 @@
+name: "Copilot Setup Steps"
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+  pull_request:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+
+jobs:
+  copilot-setup-steps:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          lfs: true  # jeśli używasz Git LFS
+
+      - name: Setup .NET 9 SDK
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: '9.0.x'