[CD] Use Anaconda cmake for Mac builds (#143054)

To find Anaconda-env-installed OpenMP
(As OpenMP from PyPI is looking for it in a different places)

For posterity: our build script names are very confusing:
 - [`.ci/wheel/build_wheel.sh`](https://github.com/pytorch/pytorch/blob/6cb6e8d790fce6a24e16bf03afd7275bd294ad9c/.ci/wheel/build_wheel.sh) is only used for MacOS wheel/libtorch builds
 - [`.ci/manywheel/build.sh`](https://github.com/pytorch/pytorch/blob/6cb6e8d790fce6a24e16bf03afd7275bd294ad9c/.ci/manywheel/build.sh) are used for Linux wheel/libtorch builds
 - [`.ci/pytorch/windows/build_pytorch.bat`](https://github.com/pytorch/pytorch/blob/6cb6e8d790fce6a24e16bf03afd7275bd294ad9c/.ci/pytorch/windows/build_pytorch.bat) is used for Windows wheel builds

Fixes https://github.com/pytorch/pytorch/issues/142873
Pull Request resolved: https://github.com/pytorch/pytorch/pull/143054
Approved by: https://github.com/Jack-Khuu, https://github.com/atalman

(cherry picked from commit 4d8357e912ec5a9d60f10b44bb699950e4472488)

Co-authored-by: Nikita Shulga <nshulga@meta.com>