added in testing to yaml file

.github/workflows/ci.yml

@@ -25,3 +25,20 @@ jobs:
                   file: ./Dockerfile.dev
                   push: true
                   tags: ghcr.io/letsgettechnical/image:dev
+    tests:
+        runs-on: ubuntu-latest
+
+        strategy:
+           matrix: 
+            node-version: [21.x, 20.x]
+
+        steps: 
+          - uses: actions/checkout@v2
+          - name: Use Node.js ${{ matrix.node-version }}
+              uses: actions/setup-node@v1
+              with:
+                  node-version: ${{ matrix.node-version }}
+          - name: npm install
+            run: npm ci
+         - name: tests
+            run: npm test