update node version (#645)

Author: findmyway

.github/workflows/cspell.yml

@@ -17,6 +17,6 @@ jobs:
       - uses: actions/setup-node@v1
         name: Run spell check
         with:
-          node-version: "12"
+          node-version: "14"
       - run: npm install -g cspell
       - run: cspell --config ./.cspell/cspell.json "**/*.jl" "**/*.md"