fix: node version (#53)

Author: Shivansh-yadav13

.github/workflows/ci.yml

@@ -54,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [ ^12, ^13, ^14, ^15 ]
+        node: [ ^16, ^17, ^18 ]
     steps:
       - uses: actions/checkout@v2