Add v12

Author: shrutiburman

.github/workflows/test-and-deploy.yml

@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 20
     strategy:
       matrix:
-        node: [10, 14, 16, lts]
+        node: [10, 12, 14, 16, lts]
     env:
       version: ${{ matrix.node }}
       DOCKER_LOGIN: ${{ secrets.DOCKER_USERNAME && secrets.DOCKER_AUTH_TOKEN }}