[action]: added provenance flag for npm release;

ref: https://docs.npmjs.com/generating-provenance-statements

Author: maifeeulasad

.github/workflows/publish2npm.yaml

@@ -24,6 +24,6 @@ jobs:
       - name: 'Build'
         run: npm run build
       - name: 'Publish'
-        run: npm publish
+        run: npm publish --provenance
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}