I tried my best to get the right author based on git commit history, but
in the case of code being moved from one file to make another I might
have gotten something wrong.
When a `noarch` APKBUILD is changed in local pmaports, `pmb install`
will build it automatically but image creation will fail with the
following error:
```
$ pmbootstrap install
...
[12:00:43] Build is necessary for package 'postmarketos-base-ui': binary package out of date (binary: 28-r6, local pmaports: 29-r0)
[12:00:48] => edge/postmarketos-base-ui: Done!
...
[12:01:02] (rootfs_lenovo-21bx) % apk --no-progress --repository /home/clayton/.local/var/pmbootstrap/packages/edge add -u --virtual .pmbootstrap /mnt/pmbootstrap/packages/edge/aarch64/postmarketos-base-ui-wifi-iwd-29-r0.apk /mnt/pmbootstrap/packages/edge/aarch64/postmarketos-base-ui-qt-wayland-29-r0.apk /mnt/pmbootstrap/packages/edge/aarch64/postmarketos-base-ui-qt-tweaks-29-r0.apk /mnt/pmbootstrap/packages/edge/aarch64/postmarketos-base-ui-29-r0.apk /mnt/pmbootstrap/packages/edge/aarch64/postmarketos-base-ui-audio-none-29-r0.apk /mnt/pmbootstrap/packages/edge/aarch64/postmarketos-base-ui-networkmanager-29-r0.apk /mnt/pmbootstrap/packages/edge/aarch64/postmarketos-base-ui-wifi-iwd-29-r0.apk --no-interactive
...
[12:01:04] ERROR: Invalid architecture: 'noarch', expected something like: x86_64, aarch64, riscv64, armhf, x86, armv7
[12:01:04] See also: <https://postmarketos.org/troubleshooting>
[12:01:04] Traceback (most recent call last):
File "/home/clayton/src/pmbootstrap/pmb/core/arch.py", line 42, in from_str
return Arch(arch)
^^^^^^^^^^
File "/usr/lib/python3.12/enum.py", line 757, in __call__
return cls.__new__(cls, value)
^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/enum.py", line 1171, in __new__
raise ve_exc
ValueError: 'noarch' is not a valid Arch
```
[caleb: fixed tests]
Add some exhaustive unit testing to validate that these types behave as
expected.
And fix a few bugs uncovered by the tests.
Signed-off-by: Caleb Connolly <caleb@postmarketos.org>
