feat(nvim): pytest-language-server flake

pkgs/pytest-language-server.nix

@@ -0,0 +1,28 @@
+{
+  lib,
+  rustPlatform,
+  fetchFromGitHub,
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "pytest-language-server";
+  version = "0.21.0";
+
+  src = fetchFromGitHub {
+    owner = "bellini666";
+    repo = "pytest-language-server";
+    rev = "v${version}";
+    hash = "sha256-Vvr4TGt5QZL1Ypw1zBSzkv+5JT4fxHayHpIbVTFwO9I=";
+  };
+
+  doCheck = false;
+
+  cargoHash = "sha256-E4KcGqMRUvmSK93ALzqzlE+MJoxMQUZnJofW3eWVicU=";
+
+  meta = {
+    description = "Language Server Protocol implementation for pytest";
+    homepage = "https://github.com/bellini666/pytest-language-server";
+    license = lib.licenses.mit;
+    mainProgram = "pytest-language-server";
+  };
+}