vimPlugins.nvim-treesitter: switch to nurl in update script

pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix

···
 # generated by pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
 
-{ buildGrammar, fetchFromGitHub, fetchFromGitLab, fetchgit }:
+{ buildGrammar, fetchFromGitHub, fetchFromGitLab, fetchFromSourcehut, fetchgit }:
 
 {
   ada = buildGrammar {

pkgs/applications/editors/vim/plugins/nvim-treesitter/update-shell.nix

···
 in
 
 mkShell {
-  packages = [ neovim nix-prefetch python3 ];
+  packages = [ neovim nurl python3 ];
 
   NVIM_TREESITTER = nvim-treesitter;
 }

pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py

···
 #!nix-shell update-shell.nix -i python
 
 import json
-import re
 import subprocess
+from concurrent.futures import ThreadPoolExecutor
 from os import environ
 from os.path import dirname, join
 
···
         ]
     )
 )
-
-regex = re.compile("^https?://(github.com|gitlab.com)/(.+?)/(.+?)(.git)?$")
 
 
 def generate_grammar(item):
···
     version = "{rev[:7]}";
     source = """
 
-    m = regex.fullmatch(url)
-    cmd = ["nix-prefetch", "--rev", rev]
-
-    match m and m.group(1, 2, 3):
-        case "github.com", owner, repo:
-            cmd += [
-                "fetchFromGitHub",
-                "--owner",
-                owner,
-                "--repo",
-                repo,
-            ]
-
-            generated += f"""fetchFromGitHub {{
-      owner = "{owner}";
-      repo = "{repo}";"""
-
-        case "gitlab.com", owner, repo:
-            cmd += [
-                "fetchFromGitLab",
-                "--owner",
-                owner,
-                "--repo",
-                repo,
-            ]
-
-            generated += f"""fetchFromGitLab {{
-      owner = "{owner}";
-      repo = "{repo}";"""
-
-        case _:
-            cmd += ["fetchgit", "--url", url]
-            generated += f"""fetchgit {{
-      url = "{url}";"""
-
-    hash = subprocess.check_output(cmd, text=True).strip()
-
-    generated += f"""
-      rev = "{rev}";
-      hash = "{hash}";
-    }};"""
+    generated += subprocess.check_output(["nurl", url, rev, "--indent=4"], text=True)
+    generated += ";"
 
     location = info.get("location")
     if location:
···
 
 generated_file = """# generated by pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
 
-{ buildGrammar, fetchFromGitHub, fetchFromGitLab, fetchgit }:
+{ buildGrammar, fetchFromGitHub, fetchFromGitLab, fetchFromSourcehut, fetchgit }:
 
 {
 """
 
-for generated in map(generate_grammar, lockfile.items()):
+for generated in ThreadPoolExecutor().map(generate_grammar, lockfile.items()):
     generated_file += generated
 
 generated_file += "}\n"