Bump git2 from 0.14.1 to 0.14.2 (#1919)

Bumps [git2](https://github.com/rust-lang/git2-rs) from 0.14.1 to 0.14.2.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/rust-lang/git2-rs/commit/0443adb5388b2a529c042256e7716c36dc567220"><code>0443adb</code></a> Bump libgit2-sys to 0.13.2 (<a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/820">#820</a>)</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/871788d261f60b3b319f1d0d8a450b1cfc70c667"><code>871788d</code></a> Add binding for git_odb_exists_ext (<a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/818">#818</a>)</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/d703dd940f1302227a9efb6672dbdbf34f4cb0bc"><code>d703dd9</code></a> Update to 1.4.2 (<a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/815">#815</a>)</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/8c6a26bd74f2a16c49a8187127152ff3c3b53276"><code>8c6a26b</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/814">#814</a> from weihanglo/git2-curl-0.15.0</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/ce54dacf986e4ce309f1d982987621f496c40c62"><code>ce54dac</code></a> Bump version of git2-curl</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/64d849b8436a6b77a2636693a7523b5cac9cd993"><code>64d849b</code></a> Update to 1.4.1 (<a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/811">#811</a>)</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/af6fc41c2918c07d2c898c5630b552c2525c9951"><code>af6fc41</code></a> Bump libgit2 in version probe and readme (<a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/808">#808</a>)</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/509fe5832ea35f6a670333da9e98ba5571419318"><code>509fe58</code></a> Bump libgit2 to 1.4.0 (<a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/806">#806</a>)</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/58ed9c32e1dff518c0d408f1fc08b543f35b1bd7"><code>58ed9c3</code></a> <code>libgit2-sys</code>: use <code>src</code> instead <code>.git</code> as vendored indicator (<a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/801">#801</a>)</li>
<li><a href="https://github.com/rust-lang/git2-rs/commit/ae02afdbf0a8ab352aad9f18c726a70a1e7ecf0b"><code>ae02afd</code></a> Harmonize commitish and committish in docstrings (<a href="https://github-redirect.dependabot.com/rust-lang/git2-rs/issues/799">#799</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/rust-lang/git2-rs/compare/git2-curl-0.14.1...0.14.2">compare view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=git2&package-manager=cargo&previous-version=0.14.1&new-version=0.14.2)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)


</details>

boa_tester/Cargo.toml

@@ -40,7 +40,7 @@ regex = "1.5.5"
 once_cell = "1.10.0"
 colored = "2.0.0"
 fxhash = "0.2.1"
-git2 = "0.14.1"
+git2 = "0.14.2"
 hex = "0.4.3"
 num-format = "0.4.0"
 gc = { version = "0.4.1", features = ["derive"] }