Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: kevinbackhouse

.github/workflows/publish-reusable.yml

@@ -54,11 +54,9 @@ jobs:
         path: dist/
 
     - name: Publish to PyPI
-      env:
-        REPOSITORY_URL: ${{ inputs.repository_url }}
       uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0
       with:
-        repository-url: $REPOSITORY_URL
+        repository-url: ${{ inputs.repository_url }}
 
     - name: Sign with sigstore
       uses: sigstore/gh-action-sigstore-python@f832326173235dcb00dd5d92cd3f353de3188e6c # v3.1.0