Update PY_SUPPORT_TIER according to PEP 11

[chris-eibl]

According to PEP 11 the following target triples need an update:

Target Triple	PY_SUPPORT_TIER outdated	PY_SUPPORT_TIER
aarch64-*-linux-gnu/gcc	2	1
aarch64-pc-windows-msvc/msvc	3	2
x86_64-apple-darwin*/clang	1	2
powerpc64le-*-linux-gnu/gcc	2	3

@zooba, @hugovk, @diegorusso

Linked PRs

• GH-156554: Update PY_SUPPORT_TIER according to PEP 11 #156576

[StanFromIreland]

I'll create a PR if this seems worthwhile.

I think that this is worthwhile. 👍

[hirenaqg]

[spam removed]