toml 0.9 regression for missing leading quote

--- toml 0.8.19 ---
TOML parse error at line 3, column 16
  |
3 | tqdm = { url = invalid url to tqdm-4.66.0-py3-none-any.whl" }
  |                ^
invalid string
expected `"`, `'`


--- toml 0.9.2 ---
TOML parse error at line 3, column 28
  |
3 | tqdm = { url = invalid url to tqdm-4.66.0-py3-none-any.whl" }
  |                            ^
missing comma between key-value pairs, expected `,`