PR Checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature (please, look at the "Scope of the project" section in the README.md file)
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

Updates the Python toolchain versions for 3.8.13, 3.9, and 3.10. Adds 3.9.13 and 3.10.6. The install_only archives of 3.8.13, 3.9.13, and 3.10.6 are smaller than before, because the static libpython libraries and tests for the stdlib itself are removed from the archives. This is essentially equivalent to what we do in #758, but now in the python-build-standalone side. We can remove our own filtering introduced in #758 once the support of earlier versions than 3.8.13, 3.9.13, and 3.10.6 is dropped.
For details of the toolchain side changes, see https://github.com/indygreg/python-build-standalone/releases/tag/20220802.

What is the current behavior?

Issue Number: N/A

For 3.9, 3.9.12 is installed.
For 3.10, 3.10.4 is installed.

What is the new behavior?

For 3.9, 3.9.13 is installed.
For 3.10, 3.10.6 is installed.

Does this PR introduce a breaking change?

• Yes
• No

When user sets python_version = "3.9" in python_register_toolchains, 3.9.13 is installed.
When user sets python_version = "3.10" in python_register_toolchains, 3.10.6 is installed.

Other information