• I updated the version in pyproject.toml and made sure it matches git describe --tags --abbrev=8 in OpenBLAS at the OPENBLAS_COMMIT

This PR:

• removes the local patch
• updates OpenBLAS to the commit after the patch was applied upstream
• redoes the linking from the pkg-config file in the wheel to use the full name of the library, which on Linux is enough to no longer require LD_LIBRARY_PATH
• adds rpath bits on macOS so linking from the pkg-config file no longer requires DYLD_LIBRARY_PATH