remove auto-publishing to npm.

.github/workflows/npm-publish.yml

@@ -1,23 +0,0 @@
-name: publish npm package
-
-on:
-  push:
-    tags: [v*]
-
-jobs:
-  publish-npm:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
-        with:
-          node-version: 18
-      - uses: extractions/setup-just@v1
-      - run: just install-dependencies
-      - run: just build
-      - run: just test
-      - run: just emit-types
-      - uses: JS-DevTools/npm-publish@v1
-        with:
-          token: ${{ secrets.NPM_TOKEN }}
-          greater-version-only: true