Switch to PyPy3.10

[gpotter2]

• switch PyPy to 3.10

Breaking issues:

• there's a bug (https://foss.heptapod.net/pypy/pypy/-/issues/4003) in PyPy that breaks our tests when a backslash is used to break, so we need it to be fixed before merging this.
• brotli is currently having issues with the latest PyPy version: https://github.com/google/brotli/issues/1072 (bypassed in Tests are failing under PyPy3 #4115 by pinning the version). I however don't expect this to be fixed any time soon, considering their track record.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.51%. Comparing base (01aeed2) to head (4cde487).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4126      +/-   ##
==========================================
- Coverage   82.17%   81.51%   -0.66%     
==========================================
  Files         350      350              
  Lines       83261    83261              
==========================================
- Hits        68419    67870     -549     
- Misses      14842    15391     +549     

see 21 files with indirect coverage changes

[gpotter2]

Ugh. I don't want to have and debug this. whyyyyy pypy

[gpotter2]

The macos failure is funny though.

###(063)=[failed] Test signal fuzzing offset 1

>>> test_offset = 100
>>> 
>>> class testFrame3(SignalPacket):
...     fields_desc = [
...         BEUnsignedSignalField("muxSig7", default=0, start=2, size=8, scaling=1, offset=test_offset),
...     ]
... 
>>> pkt = testFrame3()
>>> pkt = fuzz(pkt)
>>> 
>>> li = [pkt.muxSig7._fix() for x in range(100000)]
>>> 
>>> assert abs(round(sum(li) / len(li)) - 128 - test_offset) < 2
Traceback (most recent call last):
  File "<input>", line 2, in <module>
AssertionError

As I understand is that was very, very unlikely :p