Add copilot setup steps

Author: oBusk

.github/workflows/copilot-setup-steps.yml

@@ -0,0 +1,22 @@
+name: "Copilot Setup Steps"
+
+# https://docs.github.com/en/copilot/how-tos/use-copilot-agents/coding-agent/customize-the-agent-environment#preinstalling-tools-or-dependencies-in-copilots-environment
+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@v6
+            - name: Set up using pnpm
+              uses: oBusk/action-pnpm-setup@v1