Update ghc git pins

Author: hamishmack

lazy-inputs/ghc912X/flake.lock

@@ -31,7 +31,7 @@ in recurseIntoAttrs rec {
     # Cross compilation to aarch64 is also broken
     || stdenv.hostPlatform.isAarch64 && !stdenv.buildPlatform.isAarch64
     # Building profiled version of Cabal for haskell-gi is currently broken for GHC head
-    || compiler-nix-name == "ghc91320241204";
+    || compiler-nix-name == "ghc91320241230";
 
   ifdInputs = {
     inherit (project) plan-nix;

lazy-inputs/ghc913/flake.lock

@@ -20,7 +20,7 @@ in recurseIntoAttrs {
 
   # Not sure why this breaks for ghc 8.10.7
   meta.disabled = compiler-nix-name == "ghc8107"
-    || builtins.elem compiler-nix-name [ "ghc9121" "ghc912020241128" "ghc91320241204" ]
+    || builtins.elem compiler-nix-name [ "ghc9121" "ghc912020241215" "ghc91320241230" ]
     || stdenv.hostPlatform.isMusl
     || stdenv.hostPlatform.isGhcjs
     || stdenv.hostPlatform.isWindows