tree-sitter.grammars: pin known bad with pythonPackages.tree-sitter 0.24

This commit prevents the update script from touching the files listed
under `pinnedGrammars`. This way breakages cannot accidentally be caused
again (re: #414233 breaking the heck out of staging-next et al)

pkgs/development/tools/parsing/tree-sitter/update.nix

···
     };
   };
 
+  pinnedGrammars = [
+    "tree-sitter-bash"
+    "tree-sitter-bibtex"
+    "tree-sitter-c"
+    "tree-sitter-comment"
+    "tree-sitter-fortran"
+    "tree-sitter-hcl"
+    "tree-sitter-hyprlang"
+    "tree-sitter-llvm"
+    "tree-sitter-markdown"
+    "tree-sitter-query"
+    "tree-sitter-rust"
+  ];
+  pinnedGrammarsJson = jsonFile pinnedGrammars;
+
   allGrammars =
     let
       treeSitterOrgaGrammars = lib.listToAttrs (
···
         inherit
           knownTreeSitterOrgGrammarRepos
           ignoredTreeSitterOrgRepos
+          pinnedGrammars
           ;
       }
       (

pkgs/development/tools/parsing/tree-sitter/update_impl.py

···
             "outputDir": outputDir,
             "nixRepoAttrName": nixRepoAttrName,
         }:
+            if repo in args["pinnedGrammars"]:
+                log(f"Grammar {repo} is pinned, skipping upgrade...")
+                return
+
             token: str | None = os.environ.get("GITHUB_TOKEN", None)
             out = run_cmd(
                 curl_github_args(