chore: remove Node 12 from Actions flow

Author: dkundel

.github/workflows/nodejs.yml

@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-latest, windows-latest, ubuntu-latest]
-        node-version: [12, 14]
+        node-version: [14]
 
     steps:
       - uses: actions/checkout@v1