cargo-codspeed: unpin libgit2

pkgs/development/tools/rust/cargo-codspeed/default.nix

@@ -3,7 +3,7 @@
 , fetchFromGitHub
 , curl
 , pkg-config
-, libgit2_1_5
+, libgit2
 , openssl
 , zlib
 , stdenv
@@ -30,7 +30,7 @@ rustPlatform.buildRustPackage rec {
 
   buildInputs = [
     curl
-    libgit2_1_5
+    libgit2
     openssl
     zlib
   ] ++ lib.optionals stdenv.isDarwin [
@@ -40,6 +40,10 @@ rustPlatform.buildRustPackage rec {
   cargoBuildFlags = [ "-p=cargo-codspeed" ];
   cargoTestFlags = cargoBuildFlags;
 
+  env = {
+    LIBGIT2_NO_VENDOR = 1;
+  };
+
   meta = with lib; {
     description = "Cargo extension to build & run your codspeed benchmarks";
     homepage = "https://github.com/CodSpeedHQ/codspeed-rust";