ci: skip building macOS binary wheels for now as it's broken

It's just completely broken right now:
https://github.com/zeldamods/oead/actions/runs/9588470856/job/26440567392

I have no idea why and I've spent way too much time debugging this
already so I'm just going to disable macOS builds for now.

.github/workflows/release.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest]
     env:
       MACOSX_DEPLOYMENT_TARGET: "10.14"
       CIBW_ARCHS: auto64

readme.rst

@@ -31,7 +31,9 @@ This will download and install a precompiled version of oead for the following p
 
 * Windows (x86-64 / 64-bit)
 * Recent Linux distributions (x86-64, glibc and musl)
-* macOS 10.14 / 10.15 (x86-64)
+
+Precompiled builds for macOS are currently unavailable as the wheel build process seems to be broken.
+Please help us fix this `release failure <https://github.com/zeldamods/oead/actions/runs/9588470856/job/26440567392>` if you know how!
 
 The following versions of Python are supported: