fix(deps): update rust crate rust-ini to v0.21.1 (#1383)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [rust-ini](https://togithub.com/zonyitoo/rust-ini) | dependencies |
patch | `0.21.0` -> `0.21.1` |

---

### Release Notes

<details>
<summary>zonyitoo/rust-ini (rust-ini)</summary>

###
[`v0.21.1`](https://togithub.com/zonyitoo/rust-ini/releases/tag/v0.21.1)

[Compare
Source](https://togithub.com/zonyitoo/rust-ini/compare/v0.21.0...v0.21.1)

#### What's Changed

- Deduplicate eof error handling by
[@&#8203;GnomedDev](https://togithub.com/GnomedDev) in
[https://github.com/zonyitoo/rust-ini/pull/127](https://togithub.com/zonyitoo/rust-ini/pull/127)
- [#&#8203;128](https://togithub.com/zonyitoo/rust-ini/issues/128)
Add/Allow duplicate properties by
[@&#8203;RouHim](https://togithub.com/RouHim) in
[https://github.com/zonyitoo/rust-ini/pull/129](https://togithub.com/zonyitoo/rust-ini/pull/129)
- Restrict lifetimes of SectionSetter methods by
[@&#8203;rikyborg](https://togithub.com/rikyborg) in
[https://github.com/zonyitoo/rust-ini/pull/135](https://togithub.com/zonyitoo/rust-ini/pull/135)

#### New Contributors

- [@&#8203;RouHim](https://togithub.com/RouHim) made their first
contribution in
[https://github.com/zonyitoo/rust-ini/pull/129](https://togithub.com/zonyitoo/rust-ini/pull/129)
- [@&#8203;rikyborg](https://togithub.com/rikyborg) made their first
contribution in
[https://github.com/zonyitoo/rust-ini/pull/135](https://togithub.com/zonyitoo/rust-ini/pull/135)

**Full Changelog**:
zonyitoo/rust-ini@v0.21.0...v0.21.1

</details>

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