guides: replace pep517 CLI usage with pypa/build

source/guides/github-actions-ci-cd-sample/publish-to-test-pypi.yml

@@ -13,19 +13,19 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: 3.7
-    - name: Install pep517
+    - name: Install pypa/build
       run: >-
         python -m
         pip install
-        pep517
+        build
         --user
     - name: Build a binary wheel and a source tarball
       run: >-
         python -m
-        pep517.build
-        --source
-        --binary
-        --out-dir dist/
+        build
+        --sdist
+        --wheel
+        --outdir dist/
         .
     # Actually publish to PyPI/TestPyPI
     - name: Publish distribution 📦 to Test PyPI

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

@@ -87,13 +87,13 @@ 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 pep517
+   :end-before: Install build
 
 This will download your repository into the CI runner and then
 install and activate Python 3.7.
 
 And now we can build dists from source. In this example, we'll
-use ``pep517`` package, assuming that your project has a
+use ``build`` package, assuming that your project has a
 ``pyproject.toml`` properly set up (see
 :pep:`517`/:pep:`518`).