black: Add mypyc-compiled wheels for manylinux2014_aarch64

pypi/projects/black/build.md

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+# Building mypyc-compiled Black binary wheels
+
+This boosts the performance of the Black formatter, though having the binary wheels are optional.
+
+```console
+$ git clone https://github.com/psf/black
+$ git checkout ${RELEASE_TAG}
+```
+
+Then install some build prerequisites in a venv:
+
+```console
+$ pip install hatch hatch-vcs hatch-fancy-pypi-readme hatch-mypyc auditwheel
+$ sudo apt-get install -y patchelf
+```
+
+Check if the version is cleanly recognized:
+
+```console
+$ hatch version
+```
+
+Run the mypyc build.  
+This step takes about *2-3 minutes* at an aarch64 Linux VM running on an Apple Silicon (M1, arm64) machine.
+
+```console
+$ HATCH_BUILD_HOOKS_ENABLE=1 hatch build -t wheel
+```
+
+Rename the wheel file to be a "vanilla" linux wheel so that `auditwheel` can correct the platofrm tag.  
+(Apply your `RELEASE_TAG` version in the filenames instead of `23.7.0`.)
+
+```console
+$ mv dist/black-23.7.0-cp311-cp311-manylinux_2_35_aarch64.whl dist/black-23.7.0-cp311-cp311-linux_aarch64.whl
+```
+
+Repair the wheel to conform with the manylinux2014 platform.
+
+```console
+$ docker run -u "$(id -u):$(id -g)" -i -t -v `pwd`:/io quay.io/pypa/manylinux2014_aarch64 auditwheel repair -w /io/dist /io/dist/black-23.7.0-cp311-cp311-linux_aarch64.whl
+```
+
+Copy the repaired wheel files inside the `dist` directory here once done.