MIPS architectures support

[messense]

I saw this PR in home-assistant: home-assistant/core#75318 that complains about lacking of MIPS architectures support in maturin.

• ring dependency is only used for the upload feature, it can be disabled for unsupported architectures
• goblin throws type is too big error on MIPS: MIPS64 parse error: "type is too big (1236271128) for 137416" m4b/goblin#274, ignored the error since it's only used for emitting a warning
• mips64el: Add Linux mips64el architecture support #1023
• mipsel: Add Linux mipsel architecture support #1024
• mips? No easy way to test this, I don't think we should support it because Debian already dropped support. https://www.debian.org/ports/mips/, https://www.phoronix.com/news/Debian-Drops-Old-32-Bit-MIPS

@Arnie97 I assume you have MIPS devices that can do testing? Would you like to help us to add MIPS support?

[messense]

FYI, we already added 64-bit RISC-V in #1001.

[Arnie97]

@messense Great job 🎉

I've tested the latest beta verson on mips(eb), mipsel and 64-bit RISC-V this weekend, and everything worked smoothly. However I did not test the "upload to PyPI" command yet; I did not have a actual maturin project, so I'm trying to figure out how to upload to https://test.pypi.org/.

hass@K3C ~ $ pip3 --version
pip 22.2 from /usr/lib/python3.10/site-packages/pip (python 3.10)

hass@K3C ~ $ uname -m
mips

hass@K3C ~ $ head -15 /proc/cpuinfo
system type             : GRX500 rev 1.2
machine                 : EASY350 ANYWAN (GRX350) Router model
processor               : 0
cpu model               : MIPS interAptiv V2.0
cpu MHz                 : 600.000
BogoMIPS                : 387.07
wait instruction        : yes
microsecond timers      : yes
tlb_entries             : 32
extra interrupt vector  : yes
hardware watchpoint     : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc, 0x0ffb, 0x0ffb]
isa                     : mips1 mips2 mips32r1 mips32r2
ASEs implemented        : dsp mt eva
shadow register sets    : 1
kscratch registers      : 0


hass@K3C ~ $ pip install --user maturin==0.13.2-beta.2
Looking in indexes: https://mirrors.bfsu.edu.cn/pypi/web/simple
Collecting maturin==0.13.2-beta.2
  Using cached https://mirrors.bfsu.edu.cn/pypi/web/packages/6d/cf/035fe84d715a6f2af4561ca1f0eb27ba6d4e4745ee47db1063ecb9f03e80/maturin-0.13.2b2.tar.gz (143 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: tomli>=1.1.0 in /usr/lib/python3.10/site-packages (from maturin==0.13.2-beta.2) (2.0.1)
Building wheels for collected packages: maturin
  Building wheel for maturin (pyproject.toml) ... done
  Created wheel for maturin: filename=maturin-0.13.2b2-cp310-cp310-linux_mips.whl size=8559225 sha256=72ba1885bda6129f9e31e4d00a8d2c65328189ec0badcde5fe6c1a6411470c8b
  Stored in directory: /home/hass/.cache/pip/wheels/f9/00/b0/3ed5070408f9c155a7afe4d7bd39cc6f9cfe2d895f01f0ed2e
Successfully built maturin
Installing collected packages: maturin
Successfully installed maturin-0.13.2b2

[messense]

I think upload will not work for https pypi instance because ring does not support MIPS yet so we disabled https support.