chore: add GitHub Workflow

.github/workflows/test-anchor.yml

@@ -0,0 +1,25 @@
+name: Test Anchor
+
+on: [push]
+
+jobs:
+  run-anchor-build:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: pnpm/action-setup@v2
+        with:
+          version: 8
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 20
+          cache: 'pnpm'
+      - uses: metadaoproject/[email protected]
+        with:
+          anchor-version: '0.30.1'
+          node-version: '20.18.0'
+          solana-cli-version: '1.18.9'
+      - run: anchor build
+        shell: bash