Add publish environment for publishing crate (#1619)

Author: Kobzol

.github/workflows/publish.yml

@@ -15,6 +15,7 @@ jobs:
     if: github.repository_owner == 'rust-lang'
     name: Release-plz release
     runs-on: ubuntu-latest
+    environment: publish
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6