use the correct token name

I used `NODE_AUTH_TOKEN` in other projects but that doesn't seem to work
anymore for some reason 🤔

Found this resource that talks about `NPM_TOKEN`: https://docs.npmjs.com/using-private-packages-in-a-ci-cd-workflow

Author: RobinMalfait

.github/workflows/release-insiders.yml

@@ -54,4 +54,4 @@ jobs:
         run: npm publish --tag insiders
         env:
           CI: true
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/release.yml

@@ -47,4 +47,4 @@ jobs:
         run: npm publish
         env:
           CI: true
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}