Fix unintentional blockquotes caused by wrong indentation #1178

Describe the bug
There are some sections throughout the devguide that render as blockquotes rather than lists or other things because of incorrect indentation.

Expected behavior
They rendered output should have the correct markup

Screenshots

Additional context
I'm working on a few PRs to fix the issues, next I'll look at docs.python.org for similar errors. It might also be worth to add a checker to sphinx-lint if possible. cc @hugovk

PRs:

• gh-1178: fix indentation in the buildbot page. #1179
• gh-1178: fix indentation in the argument clinic page. #1180
• gh-1178: fix indentation in a few more pages. #1181
• gh-1178: fix wrong indentation in nested list #1189

Somewhat related PRs, where the wrong indentation created a definition list:

• Fix wrongly indented nested list in compiler.rst. #1183
• Fix wrongly indented nested list in index.rst. #1184

See also the following issue for similar issues in the CPython docs:

• Fix wrongly indented blocks in the documentation cpython#110631

Thanks to @pradyunsg that helped me with these issues and PRs and the 2023 CPython sprint.