PEP585 update - benchmarks tools torchgen (#145101)

This is one of a series of PRs to update us to PEP585 (changing Dict -> dict, List -> list, etc).  Most of the PRs were completely automated with RUFF as follows:

Since RUFF UP006 is considered an "unsafe" fix first we need to enable unsafe fixes:

```
--- a/tools/linter/adapters/ruff_linter.py
+++ b/tools/linter/adapters/ruff_linter.py
@@ -313,6 +313,7 @@
                     "ruff",
                     "check",
                     "--fix-only",
+                    "--unsafe-fixes",
                     "--exit-zero",
                     *([f"--config={config}"] if config else []),
                     "--stdin-filename",
```

Then we need to tell RUFF to allow UP006 (as a final PR once all of these have landed this will be made permanent):

```
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@

 [tool.ruff]
-target-version = "py38"
+target-version = "py39"
 line-length = 88
 src = ["caffe2", "torch", "torchgen", "functorch", "test"]

@@ -87,7 +87,6 @@
     "SIM116", # Disable Use a dictionary instead of consecutive `if` statements
     "SIM117",
     "SIM118",
-    "UP006", # keep-runtime-typing
     "UP007", # keep-runtime-typing
 ]
 select = [
```

Finally running `lintrunner -a --take RUFF` will fix up the deprecated uses.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/145101
Approved by: https://github.com/bobrenjc93

tools/github/github_utils.py

@@ -4,7 +4,7 @@ from __future__ import annotations
 
 import json
 import os
-from typing import Any, Callable, cast, Dict
+from typing import Any, Callable, cast
 from urllib.error import HTTPError
 from urllib.parse import quote
 from urllib.request import Request, urlopen
@@ -72,7 +72,7 @@ def gh_fetch_json_dict(
     params: dict[str, Any] | None = None,
     data: dict[str, Any] | None = None,
 ) -> dict[str, Any]:
-    return cast(Dict[str, Any], _gh_fetch_json_any(url, params, data))
+    return cast(dict[str, Any], _gh_fetch_json_any(url, params, data))
 
 
 def gh_fetch_commit(org: str, repo: str, sha: str) -> dict[str, Any]: