buildah-unwrapped: fix build on darwin

Go software has a habit of looking for $HOME or $XDG_CACHE_HOME in `init` subroutines, which are called at startup time.
Providing the appropriate env var via `writableTmpDirAsHomeHook` and `versionCheckKeepEnvironment` is the way to go

pkgs/by-name/bu/buildah-unwrapped/package.nix

@@ -12,6 +12,7 @@
   libapparmor,
   libselinux,
   libseccomp,
+  writableTmpDirAsHomeHook,
   versionCheckHook,
 }:
 
@@ -72,8 +73,12 @@ buildGoModule (finalAttrs: {
   '';
 
   doInstallCheck = true;
-  nativeInstallCheckInputs = [ versionCheckHook ];
+  nativeInstallCheckInputs = [
+    writableTmpDirAsHomeHook
+    versionCheckHook
+  ];
   versionCheckProgramArg = "--version";
+  versionCheckKeepEnvironment = [ "HOME" ];
 
   meta = {
     description = "Tool which facilitates building OCI images";