fix: use GitHub Actions for CI

Author: fand

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+name: Run Tests
+
+on:
+    push:
+        branches:
+            - main
+
+jobs:
+    test:
+        runs-on: ubuntu-18.04
+        steps:
+            - uses: actions/checkout@v3
+
+            - name: Setup Node
+              uses: actions/setup-node@v3
+              with:
+                  node-version: "18"
+                  cache: 'yarn'
+                  cache-dependency-path: '**/yarn.lock'
+
+            - name: Install dependencies
+              run: yarn install --frozen-lockfile
+
+            - name: Build
+              run: yarn build
+
+            - name: Run Tests
+              run: yarn test