lib: enable doctests with GHC 9.2+ (#1503)

https://github.com/sol/doctest/issues/301 /
https://github.com/sol/doctest/issues/327
seem to be specific to GHC 9.0.

hledger-lib/hledger-lib.cabal

@@ -184,7 +184,7 @@ test-suite doctest
     , uglymemo
     , unordered-containers >=0.2
     , utf8-string >=0.3.5
-  if impl(ghc >= 9.0)
+  if impl(ghc >= 9.0) && impl(ghc < 9.2)
     buildable: False
   default-language: Haskell2010
 

hledger-lib/package.yaml

@@ -164,9 +164,9 @@ tests:
     - doctest >=0.18.1
     - Glob >=0.7
 
-    # disable doctest with GHC 9 for now, https://github.com/sol/doctest/issues/301
+    # disable doctest with GHC 9.0, https://github.com/sol/doctest/issues/301
     when:
-    - condition: impl(ghc >= 9.0)
+    - condition: impl(ghc >= 9.0) && impl(ghc < 9.2)
       buildable: false
 
     # ghc 8.4+ on mac needs this workaround. See