build(devs-infra): replace node 12 with node 18 for CI (#3766)

Author: ahnpnl

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [12.x, 14.x, 16.x]
+        node-version: [14.x, 16.x, 18.x]
     name: Node v${{ matrix.node-version }} on ${{ inputs.os }}
     runs-on: ${{ inputs.os }}