Make breakpad depdendencies private (#61183)
Summary:
Otherwise, it will results in the following errors for people developing extensions
```
CMake Error in frontends/pytorch/csrc/CMakeLists.txt:
Imported target "torch" includes non-existent path
"/usr/local/include/breakpad"
```
Fixes different issue reported in https://github.com/pytorch/pytorch/issues/60485
Pull Request resolved: https://github.com/pytorch/pytorch/pull/61183
Reviewed By: driazati
Differential Revision: D29538332
Pulled By: malfet
fbshipit-source-id: e83cfd0b335e9b0b1ba5715789b09765db671346
