Bump array submodule
This bumps array to version 0.5.4.0 so that we can distinguish
it with MIN_VERSION_array (as it introduces some changes to the
Show instance for UArray).
A merge candidate for 8.8.
Edited by Ryan Scott
This bumps array to version 0.5.4.0 so that we can distinguish
it with MIN_VERSION_array (as it introduces some changes to the
Show instance for UArray).
A merge candidate for 8.8.