ci: add workflow for running tests on push/PR

.github/workflows/run-tests.yml

@@ -0,0 +1,23 @@
+name: Zig Tests
+
+on:
+  push:
+    branches:
+      - main # Change this to your branch name if needed
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Zig
+        uses: rhysd/setup-zig@v1
+        with:
+          version: latest # Or specify a specific version, e.g., 0.11.0
+
+      - name: Run Zig tests
+        run: zig test src/main.zig # Change 'src/main.zig' to the entry point for your tests