fix: enable OIDC provenance with NPM_CONFIG_PROVENANCE env var

- Set NPM_CONFIG_PROVENANCE=true environment variable
- This enables automatic provenance publishing with OIDC
- Following changesets official approach for provenance

Author: elieteyssedou

.github/workflows/release.yml

@@ -43,6 +43,7 @@ jobs:
         id: changesets
         uses: changesets/action@v1
         with:
-          publish: pnpm release -- --provenance
+          publish: pnpm release
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_CONFIG_PROVENANCE: true