added github action

.github/workflows/main.yml

@@ -0,0 +1,36 @@
+name: Run Jest Tests
+
+on: [push, pull_request]
+
+env:
+  CHILD_CONCURRENCY: 1
+  NODE_ENV: test
+
+jobs:
+  tests-run:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.19.1]
+    steps:
+      - uses: actions/setup-node@v2.1.5
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      # run unit tests
+      - name: Run Jest Unit Tests
+        run: yarn && yarn test
+
+
+#  upload-to-codecov:
+#    needs: [tests-run]
+#    runs-on: ubuntu-latest
+#    steps:
+#      - name: Checkout
+#        uses: actions/checkout@v2
+#      - name: Download artifacts
+#        uses: actions/download-artifact@v2
+#      - name: Upload coverage to Codecov
+#        uses: codecov/codecov-action@v2