Update include directive's end-before

Co-authored-by: Sviatoslav Sydorenko <wk.cvs.github@sydorenko.org.ua>

Author: pradyunsg

source/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows.rst

@@ -87,7 +87,7 @@ Then, add the following under the ``build-n-publish`` section:
 .. literalinclude:: github-actions-ci-cd-sample/publish-to-test-pypi.yml
    :language: yaml
    :start-after: runs-on:
-   :end-before: Install build
+   :end-before: Install pypa/build
 
 This will download your repository into the CI runner and then
 install and activate Python 3.7.