DOC: Add Timedelta accepting float value
- [x] closes #60044 

@ZKaoChi , See [the error message for the failed test](https://results.[pre-commit.ci](https://results.pre-commit.ci/run/github/858127/1729081421.P09tMa7sRx2mXWMiXpg8cw)/run/github/858127/1729081421.P09tMa7sRx2mXWMiXpg8cw):

```
cython-lint.............................................................................................Failed
- hook id: cython-lint
- exit code: 1

/code/pandas/_libs/tslibs/timedeltas.pyx:1871:89: E501 line too long (149 > 88 characters)
```

(Keep lines below 89 characters.) @5j9 I see. Thanks a lot!!! Thanks @ZKaoChi  Thanks a lot for your help.