Fix 2021-05 Python & Pyside component version numbers

[firai]

• The Python version after the equal sign does not match with that on the left. For the 3.10 series of releases, the Python version on the right side of the equal sign should say Python 3.10.2 64bit rather than Python 3.9.10 64bit.
• Pyside6 is listed as a component after the equal sign, which is not correct. The release actually contains Pyside2 as noted in the change log.

[stonebig]

Oups! Sorry for the error, and sorry for the very long time before merging it.