Undo the changes for aeson >= 2.0

Author: mihaimaruseac

build-constraints.yaml

@@ -6864,7 +6864,7 @@ package-flags:
         five-three: true
 
     greskell:
-        server-test: false
+        hint-test: false
 
     windns:
         allow-non-windows: true
@@ -7004,23 +7004,20 @@ skipped-tests:
     - case-insensitive
     - clock
     - criterion
-    - criterion-measurement
     - distributive # via hspec
     - doctest # via hspec
     - foundation
     - hspec
     - hspec-discover # via logging-facade/mockery
     - js-flot
     - js-jquery
-    - microstache
     - nanospec
     - optparse-applicative # via QuickCheck
     - primitive
     - random
     - scientific
     - split
     - splitmix
-    - statistics
     - tasty-expected-failure # via tasty-hedgehog
     - vector # doctest
     - vector-binary-instances
@@ -7718,14 +7715,11 @@ skipped-benchmarks:
     - cassava
     - clock
     - criterion
-    - criterion-measurement
     - foundation
     - hashable # https://github.com/fpco/stackage/issues/1818
     - hspec
-    - microstache
     - nanospec
     - scientific
-    - statistics
     - vector-binary-instances
 
     # Timeouts