ci: "latest" doesn't work

Author: gfx

.github/workflows/ci.yml

@@ -11,7 +11,11 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        node-version: ['12', '14', '16', latest]
+        node-version:
+          - '12'
+          - '14'
+          - '16'
+          - '17'
 
     steps:
     - uses: actions/checkout@v2