git-mit: add upstream patch for libgit2 version bump

pkgs/by-name/gi/git-mit/package.nix

@@ -1,6 +1,7 @@
 { lib
 , rustPlatform
 , fetchFromGitHub
+, fetchpatch
 , pkg-config
 , libgit2
 , openssl
@@ -24,7 +25,16 @@ rustPlatform.buildRustPackage {
   };
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-sdAs8zJlmTqapWJNDck9YUHIiXhi0Ji6smejE5jEQXQ=";
+
+  cargoPatches = [
+    (fetchpatch {
+      name = "libgit2-update.patch";
+      url = "https://github.com/PurpleBooth/git-mit/pull/1543/commits/3e82a4f5017972c7d28151a468bb71fe7d2279e0.patch";
+      hash = "sha256-M9RpZHjOpZZqdHQe57LwMZ9zX6/4BNg3ymz8H3qupFk=";
+    })
+  ];
+
+  cargoHash = "sha256-uoS6vmHmOVkHS81mrsbbXqP/dAC/FNHAlpTDHSa632k=";
 
   nativeBuildInputs = [ pkg-config ];