Add standard build directories to LD_LIBRARY_PATH for manylinux_2_28?

[mwtoews]

I'm looking to transition from manylinux2014 to manylinux_2_28 in this project PR, however I noticed that LD_LIBRARY_PATH is different, such that auditwheel cannot find libraries installed to /usr/local.

I.e. compare LD_LIBRARY_PATH between these two images:

$ docker run -it --rm quay.io/pypa/manylinux2014_x86_64:2025.08.02-1 printenv | grep LD_
LD_LIBRARY_PATH=/opt/rh/devtoolset-10/root/usr/lib64:/opt/rh/devtoolset-10/root/usr/lib:/opt/rh/devtoolset-10/root/usr/lib64/dyninst:/opt/rh/devtoolset-10/root/usr/lib/dyninst:/usr/local/lib64

$ docker run -it --rm quay.io/pypa/manylinux_2_28_x86_64:2025.12.07-1 printenv | grep LD_
LD_LIBRARY_PATH=/opt/rh/gcc-toolset-14/root/usr/lib64:/opt/rh/gcc-toolset-14/root/usr/lib:/opt/rh/gcc-toolset-14/root/usr/lib64/dyninst:/opt/rh/gcc-toolset-14/root/usr/lib/dyninst

The later is missing /usr/local/lib64. Is this intentional? Or is it a recurrence of an old issue #26?