ci: increase testenv node version to v12

Author: wtho

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v1
         with:
-            node-version: 10.15.0
+          node-version: 12.22.6
       - name: Install deps
         run: |
           cd lib