haskell-language-server: support haskellPackages.ghc.version by default

pkgs/development/tools/haskell/haskell-language-server/withWrapper.nix

@@ -9,7 +9,9 @@
   # Run
   #  $ nix-instantiate --eval -E 'with import <nixpkgs> {}; builtins.attrNames pkgs.haskell.packages'
   # to list for your nixpkgs version.
-  supportedGhcVersions ? [ "96" ],
+  supportedGhcVersions ? [
+    (lib.strings.replaceStrings [ "." ] [ "" ] (lib.versions.majorMinor haskellPackages.ghc.version))
+  ],
 
   # Whether to build hls with the dynamic run-time system.
   # See https://haskell-language-server.readthedocs.io/en/latest/troubleshooting.html#static-binaries for more information.