git-vanity-hash: fix build and use new dependency

Build has been broken in Hydra. Potential cause seems to be an old
dependency, with a possible workaround sent upstream. Patch the
workaround for now.

pkgs/applications/version-management/git-vanity-hash/default.nix

···
-{ lib, fetchFromGitHub, rustPlatform }:
+{
+  lib,
+  fetchFromGitHub,
+  rustPlatform,
+}:
 
-rustPlatform.buildRustPackage rec {
+rustPlatform.buildRustPackage {
   pname = "git-vanity-hash";
   version = "1.0.0";
 
   src = fetchFromGitHub {
     owner = "prasmussen";
     repo = "git-vanity-hash";
-    rev = "v${version}";
-    hash = "sha256-jD8cSFXf9UNBZ9d8JTnuwhs6nPHY/xGd5RyqF+mQOlo=";
+    # v1.0.0 + build fix
+    rev = "a80e7725ac6d0b7e6807cd7315cfdc7eaf0584f6";
+    hash = "sha256-1z4jbtzUB3SH79dDXAITf7Vup1YZdTLHBieSrhrvSXc=";
   };
 
-  cargoHash = "sha256-8oW6gRtdQdmSmdwKlcU2EhHsyhk9hFhKl7RtsYwC7Ps=";
+  cargoHash = "sha256-+SQ0HpURBjnnwH1Ue7IUReOtI4LxVPK9AGSAihs0qsc=";
 
   postInstall = ''
     mkdir -p $out/share/doc/git-vanity-hash