darwin.CoreSymbolication: fix C99 compilation

https://hydra.nixos.org/build/241116326/nixlog/1
```
build flags: SHELL=/nix/store/x1xxsh1gp6y389hyl40a0i74dkxiprl7-bash-5.2-p15/bin/bash PREFIX=\$\(out\) CC=cc
cc -F/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include -fblocks -c -o CoreSymbolication.o CoreSymbolication.c
In file included from CoreSymbolication.c:1:
./CoreSymbolication.h:393:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
CSSymbolOwnerSetTransientUserData(CSSymbolOwnerRef owner, uint32_t gen);
^
int
1 error generated.
```

Also submitted patch upstream at
https://github.com/matthewbauer/CoreSymbolication/pull/1

ZHF: #265948

pkgs/os-specific/darwin/CoreSymbolication/default.nix

···
-{ lib, fetchFromGitHub, stdenv }:
+{ lib, fetchFromGitHub, fetchpatch, stdenv }:
 
 stdenv.mkDerivation {
   pname = "core-symbolication";
···
     rev = "24c87c23664b3ee05dc7a5a87d647ae476a680e4";
     hash = "sha256-PzvLq94eNhP0+rLwGMKcMzxuD6MlrNI7iT/eV0obtSE=";
   };
+
+  patches = [
+    # C99 compilation fix
+    # https://github.com/matthewbauer/CoreSymbolication/pull/1
+    (fetchpatch {
+      url = "https://github.com/boltzmannrain/CoreSymbolication/commit/1c26cc93f260bda9230a93e91585284e80aa231f.patch";
+      hash = "sha256-d/ieDEnvZ9kVOjBVUdJzGmdvC1AF3Jk4fbwp04Q6l/I=";
+    })
+  ];
 
   makeFlags = [ "PREFIX=$(out)" "CC=${stdenv.cc.targetPrefix}cc" ];