Merge pull request #86 from rokka-io/node-20

Add node 20 in tests, remove node 12 and 16

Author: chregu

.github/workflows/main.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [ 12, 14, 16, 18 ]
+        node: [ 16, 18, 20 ]
 
     steps:
       - uses: actions/checkout@v3