darwin rpath related failures in 8.10
See https://gitlab.haskell.org/ghc/ghc/-/jobs/757519 . There are 47 failures, many of the form:
Stderr ( TH_tuple1 ):
dyld: Library not loaded: @rpath/libHSpretty-1.1.3.6-ghc8.10.6.dylib
Referenced from: /private/var/lib/gitlab-runner/builds/ab1k2WE2/0/ghc/ghc/libraries/template-haskell/dist-install/build/libHStemplate-haskell-2.16.0.0-ghc8.10.6.dylib
Reason: image not found
/bin/sh: line 1: 40657 Abort trap: 6 ./TH_tuple1
Possibly related to !6003 (closed)
/cc @mpickering @angerman