Fix build on 9.2 and bump version to 2.29.1

CHANGES.md

+## Changes in 2.29.1
+ * Fix build on GHC 9.2
+
 ## Changes in 2.29.0
  * Fixes for memory leaks and performance improvements
 

haddock-api/haddock-api.cabal

 cabal-version:        3.0
 name:                 haddock-api
-version:              2.29.0
+version:              2.29.1
 synopsis:             A documentation-generation tool for Haskell libraries
 description:          Haddock is a documentation-generation tool for Haskell
                       libraries

haddock-api/src/Haddock/Backends/Xhtml.hs

@@ -15,6 +15,7 @@
 {-# LANGUAGE NamedFieldPuns   #-}
 {-# LANGUAGE TupleSections    #-}
 {-# LANGUAGE TypeApplications #-}
+{-# LANGUAGE TypeFamilies     #-}
 {-# LANGUAGE BangPatterns     #-}
 
 module Haddock.Backends.Xhtml (

haddock.cabal

 cabal-version:        3.0
 name:                 haddock
-version:              2.29.0
+version:              2.29.1
 synopsis:             A documentation-generation tool for Haskell libraries
 description:
   This is Haddock, a tool for automatically generating documentation
@@ -150,7 +150,7 @@ executable haddock
   else
     -- in order for haddock's advertised version number to have proper meaning,
     -- we pin down to a single haddock-api version.
-    build-depends:  haddock-api == 2.29.0
+    build-depends:  haddock-api == 2.29.1
 
 test-suite html-test
   type:             exitcode-stdio-1.0