build(release.yml): set node-version to 16

Author: gr2m

.github/workflows/release.yml

@@ -1,9 +1,8 @@
 name: Release
-on:
+"on":
   push:
     branches:
       - main
-
 jobs:
   release:
     name: release
@@ -12,7 +11,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
         with:
-          node-version: "12.x"
+          node-version: 16
       - run: npm ci
       - run: npx semantic-release
         env: