[BE][CI] bump ruff to 0.9.0: string quote styles (#144569)

Reference: https://docs.astral.sh/ruff/formatter/#f-string-formatting

- Change the outer quotes to double quotes for nested f-strings

```diff
- f'{", ".join(args)}'
+ f"{', '.join(args)}"
```

- Change the inner quotes to double quotes for triple f-strings

```diff
  string = """
-     {', '.join(args)}
+     {", ".join(args)}
  """
```

- Join implicitly concatenated strings

```diff
- string = "short string " "short string " f"{var}"
+ string = f"short string short string {var}"
```

Pull Request resolved: https://github.com/pytorch/pytorch/pull/144569
Approved by: https://github.com/Skylion007
ghstack dependencies: #146509

.github/scripts/trymerge_explainer.py

@@ -79,7 +79,7 @@ class TryMergeExplainer:
             (
                 "<details><summary>Advanced Debugging</summary>",
                 "Check the merge workflow status ",
-                f"<a href=\"{os.getenv('GH_RUN_URL')}\">here</a>",
+                f'<a href="{os.getenv("GH_RUN_URL")}">here</a>',
                 "</details>",
             )
         )