Freeze GHC version 9.2.5 (updated)

- Add constraint on Cabal-syntax version

9.2.5.Dockerfile

@@ -58,7 +58,7 @@ RUN cd /tmp \
   && make binary-dist \
   && cabal update \
   # See https://gitlab.haskell.org/ghc/ghc/-/wikis/commentary/libraries/version-history
-  && cabal install --allow-newer cabal-install-$CABAL_VERSION
+  && cabal install --allow-newer --constraint 'Cabal-syntax<3.7' cabal-install-$CABAL_VERSION
 
 FROM alpine:3.16 as builder