[python3] Update to 3.9.5

[lakor64]

The following commit updated Python3 to 3.9.5.

NOTE: python2 (non static) must be uninstalled if installed from vcpkg otherwise _freeze_importlib will wrongly try to link python27
(I suppose this is a vcpkg issue)
NOTE2: The patch buils and runs fine on Windows 10 (with deprecated-win7-support enabled), but it has not been tested on Windows 7.

• Which triplets are supported/not supported? Have you updated the CI baseline?

Tested on "x86-windows" and "x86-windows-static"

• Does your PR follow the maintainer guide?

I think yes.

• If you have added/updated a port: Have you run ./vcpkg x-add-version --all and committed the result?

Yes

[ghost]

All CLA requirements met.

[Hoikas]

You might also consider updating the python downloaded in vcpkg_find_acquire_program.cmake and in vcpkgTools.xml.

[lakor64]

You might also consider updating the python downloaded in vcpkg_find_acquire_program.cmake and in vcpkgTools.xml.

It should be updated now. (the hash should be ok but I didn't knew how to make vcpkg download py3).

[Hoikas]

Looks like the CI pipeline needs to be rerun due to spurious failures.

(the hash should be ok but I didn't knew how to make vcpkg download py3).

It's downloaded by other ports as part of their build process. I don't see any errors resulted to that, so it should be all good.

[strega-nil-ms]

LGTM! Thanks @lakor64 :)