Merge pull request #4093 from commercialhaskell/dhall-deps

unblock dhall deps (but not dhall)

build-constraints.yaml

@@ -3784,7 +3784,6 @@ packages:
         - cachix-api < 0
         - cairo < 0
         - cayley-client < 0
-        - cborg < 0
         - chatwork < 0
         - cheapskate < 0
         - cheapskate-highlight < 0
@@ -4111,7 +4110,6 @@ packages:
         - rebase < 0
         - ref-fd < 0
         - registry < 0
-        - repline < 0
         - req < 0
         - req-conduit < 0
         - req-url-extra < 0
@@ -4130,7 +4128,6 @@ packages:
         - search-algorithms < 0
         - seqid < 0
         - seqid-streams < 0
-        - serialise < 0
         - servant-JuicyPixels < 0
         - servant-auth < 0
         - servant-auth-client < 0