Attempt to fix release workflow again (#339)

This was working properly with `needs` and `uses`, but apparently not
when we added additional attributes.

Author: pkwarren

.github/workflows/release.yml

@@ -44,8 +44,5 @@ jobs:
         run: |
           rm -fv minisign.key
   upload:
-    environment: production
-    if: github.repository == 'bufbuild/plugins'
-    runs-on: ubuntu-22.04
     needs: release
     uses: ./.github/workflows/upload.yml