set up OIDC publishing (#59)

Author: Rich-Harris

.github/workflows/release.yml

@@ -12,6 +12,7 @@ jobs:
     if: github.repository == 'sveltejs/eslint-config'
     permissions:
       contents: write # to create release (changesets/action)
+      id-token: write # OpenID Connect token needed for provenance
       pull-requests: write # to create pull request (changesets/action)
     name: Release
     runs-on: ubuntu-latest
@@ -25,6 +26,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
+          node-version: 24.x
           cache: pnpm
 
       - run: pnpm install --frozen-lockfile
@@ -37,4 +39,4 @@ jobs:
           publish: pnpm release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NPM_CONFIG_PROVENANCE: true