chore(deps): update dependency jekyll-feed to v0.17.0 (#520)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [jekyll-feed](https://togithub.com/jekyll/jekyll-feed) | minor |
`0.15.1` -> `0.17.0` |

---

### Release Notes

<details>
<summary>jekyll/jekyll-feed (jekyll-feed)</summary>

###
[`v0.17.0`](https://togithub.com/jekyll/jekyll-feed/blob/HEAD/History.markdown#0170--2022-10-14)

[Compare
Source](https://togithub.com/jekyll/jekyll-feed/compare/v0.16.0...v0.17.0)

##### Documentation

- Update CI status badge
([#&#8203;363](https://togithub.com/jekyll/jekyll-feed/issues/363))

##### Development Fixes

- Add Ruby 3.1 to the CI matrix
([#&#8203;365](https://togithub.com/jekyll/jekyll-feed/issues/365))

##### Minor Enhancements

- Allow disabling of jekyll-feed while in development
([#&#8203;370](https://togithub.com/jekyll/jekyll-feed/issues/370))

###
[`v0.16.0`](https://togithub.com/jekyll/jekyll-feed/blob/HEAD/History.markdown#0160--2022-01-03)

[Compare
Source](https://togithub.com/jekyll/jekyll-feed/compare/v0.15.1...v0.16.0)

##### Minor Enhancements

- Add support for `page.description` in front matter to become entry
`<summary>`
([#&#8203;297](https://togithub.com/jekyll/jekyll-feed/issues/297))

##### Bug Fixes

- Fold private methods into the `:render` method as local variables
([#&#8203;327](https://togithub.com/jekyll/jekyll-feed/issues/327))
- Check `post.categories` instead of `post.category`
([#&#8203;357](https://togithub.com/jekyll/jekyll-feed/issues/357))
- Switched xml_escape for `<![CDATA[]]>` for post content
([#&#8203;332](https://togithub.com/jekyll/jekyll-feed/issues/332))

##### Development Fixes

- Add Ruby 3.0 to CI
([#&#8203;337](https://togithub.com/jekyll/jekyll-feed/issues/337))
- Lock RuboCop to v1.18.x
([#&#8203;348](https://togithub.com/jekyll/jekyll-feed/issues/348))
- Add workflow to release gem via GH Action
([#&#8203;355](https://togithub.com/jekyll/jekyll-feed/issues/355))

##### Documentation

- Use `.atom` extension in documented examples since we write an Atom
feed ([#&#8203;359](https://togithub.com/jekyll/jekyll-feed/issues/359))

</details>

---

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Co-authored-by: Rex P <[email protected]>