workflows: build-numpy: update publish job

- Don't use a RISC-V Runner since the upload job doesn't need it
- Remove unnecessary checkout of python-wheels

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>

Author: threexc

.github/workflows/build-numpy.yml

@@ -101,17 +101,10 @@ jobs:
     # version. Manual trigger is the only entry point, so checking the ref is
     # enough to gate uploads.
     if: github.ref == 'refs/heads/main'
-    runs-on: ubuntu-24.04-riscv
+    runs-on: ubuntu-latest
     permissions:
       contents: read
 
-    steps:
-      - name: Checkout python-wheels
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
-        with:
-          path: python-wheels-repo
-          persist-credentials: false
-
       - name: Download wheels
         uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
         with: