False positive: ItsContraction "does its best"

**What got flagged?**
```
╭─[todoist.markdown:1:1]
│
111 │ Home Assistant does its best to [determine what task in each project is "most" important](https://github.com/home-assistant/home-assistant/blob/master/homeassistant/components/todoist/calendar.py), and it's that task which has its state reported. You can access the other tasks you have due soon via the `all_tasks` array (see below).
│ ─┬─
│ ╰─── [Punctuation::ItsContraction] (pri 54): Use `it's` (short for `it has` or `it is`) here, not the possessive `its`.
─────╯
```

https://github.com/home-assistant/home-assistant.io/blob/f1c8b9b2b1a5368f002717d9c911876532078517/source/_integrations/todoist.markdown?plain=1#L111

**Why is this incorrect?**

This is possessive.

**Example of correct usage:**
N/A

Start by locating the ItsContraction rule in the Harper source and reviewing how it handles possessive "its" versus "it's". Use the linked todoist.markdown example as the reproduction case; done means this sentence is no longer flagged while genuine contraction errors remain detected.

Written by the indexing model from the issue text.