Expand bounds for base + ghc-prim

[brandon-leapyear]

https://github.com/commercialhaskell/stackage/blob/157cdb59416553a64457082a610704ef9f4ae8ac/build-constraints.yaml#L5865-L5866

This builds fine when manually adding it to the snapshot, so it should just be metadata revision

[andreasabel]

Revision landed: https://hackage.haskell.org/package/ekg-core-0.1.1.7/revisions/