restrict set of copied libtensorflow files #24007
Merged
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#23895 accidentally started copying spurious files named "libtensorflow_framework.so.runfiles_manifest" and "libtensorflow.so.runfiles_manifest" into the toolchain, confusing a step that expected to only see libraries.
This uses a regex to only copy the files that we do want to copy (e.g. libtensorflow.so.1.13, libtensorflow1.13.dylib).
I have verified that a toolchain build succeeds on my macbook and on my linux workstation.