Bump nokogiri from 1.10.5 to 1.10.8 (#1429)

Summary:
Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.10.5 to 1.10.8.
<details>
<summary>Release notes</summary>

*Sourced from [nokogiri's releases](https://github.com/sparklemotion/nokogiri/releases).*

> ## 1.10.8 / 2020-02-10
>
> ### Security
>
> [MRI] Pulled in upstream patch from libxml that addresses CVE-2020-7595. Full details are available in [#1992](https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1992). Note that this patch is not yet (as of 2020-02-10) in an upstream release of libxml.
>
>
>
> ## 1.10.7 / 2019-12-03
>
> ### Bug
>
> * [MRI] Ensure the patch applied in v1.10.6 works with GNU `patch`. [#1954](https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1954)
>
>
>
> ## 1.10.6 / 2019-12-03
>
> ### Bug
>
> * [MRI] Fix FreeBSD installation of vendored libxml2. [#1941, [#1953](https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1953)] (Thanks, [@&#8203;nurse](https://github.com/nurse)!)
>
>
</details>
<details>
<summary>Changelog</summary>

*Sourced from [nokogiri's changelog](https://github.com/sparklemotion/nokogiri/blob/master/CHANGELOG.md).*

> ## 1.10.8 / 2020-02-10
>
> ### Security
>
> [MRI] Pulled in upstream patch from libxml that addresses CVE-2020-7595. Full details are available in [#1992](https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1992). Note that this patch is not yet (as of 2020-02-10) in an upstream release of libxml.
>
>
> ## 1.10.7 / 2019-12-03
>
> ### Fixed
>
> * [MRI] Ensure the patch applied in v1.10.6 works with GNU `patch`. [[#1954](https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1954)]
>
>
> ## 1.10.6 / 2019-12-03
>
> ### Fixed
>
> * [MRI] Fix FreeBSD installation of vendored libxml2. [[#1941](https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1941), [#1953](https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1953)] (Thanks, [@&#8203;nurse](https://github.com/nurse)!)
</details>
<details>
<summary>Commits</summary>

- [`6ce10d1`](6ce10d15d7) version bump to v1.10.8
- [`2320f5b`](2320f5bd63) update CHANGELOG for v1.10.8
- [`4a77fdb`](4a77fdb789) remove patches from the hoe Manifest
- [`570b6cb`](570b6cbc5f) update to use rake-compiler ~1.1.0
- [`2cdb68e`](2cdb68e95a) backport libxml2 patch for CVE-2020-7595
- [`e6b3229`](e6b3229ec5) version bump to v1.10.7
- [`4f9d443`](4f9d443c2f) update CHANGELOG
- [`80e67ef`](80e67ef636) Fix the patch from [#1953](https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1953) to work with both `git` and `patch`
- [`7cf1b85`](7cf1b85a5f) Fix typo in generated metadata
- [`d76180d`](d76180d0d2) add gem metadata
- Additional commits viewable in [compare view](https://github.com/sparklemotion/nokogiri/compare/v1.10.5...v1.10.8)
</details>
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</details>
Pull Request resolved: https://github.com/Instagram/IGListKit/pull/1429

Differential Revision: D20124605

Pulled By: lorixx

fbshipit-source-id: 05e6117da1ff1eb92da518b0bf08bd7142a1f797

Gemfile.lock

@@ -96,7 +96,7 @@ GEM
     nap (1.1.0)
     netrc (0.11.0)
     no_proxy_fix (0.1.2)
-    nokogiri (1.10.5)
+    nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     octokit (4.14.0)
       sawyer (~> 0.8.0, >= 0.5.3)