Auto merge of #26529 - servo:dependabot/cargo/either-1.5.3, r=jdm

Bump either from 1.5.2 to 1.5.3

Bumps [either](https://github.com/bluss/either) from 1.5.2 to 1.5.3.
<details>
<summary>Commits</summary>
<ul>
<li><a href="cd15a34111"><code>cd15a34</code></a> 1.5.3</li>
<li><a href="278a78cbfa"><code>278a78c</code></a> FIX: Fix warning in test</li>
<li><a href="8700537f7e"><code>8700537</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/bluss/either/issues/40">#40</a> from nvzqz/more-ops</li>
<li><a href="ae03f53320"><code>ae03f53</code></a> Add <code>Either::map</code></li>
<li><a href="44361c1c19"><code>44361c1</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/bluss/either/issues/37">#37</a> from rivertam/patch-1</li>
<li><a href="a291b71ac7"><code>a291b71</code></a> Quick fix for doc comment</li>
<li>See full diff in <a href="https://github.com/bluss/either/compare/1.5.2...1.5.3">compare view</a></li>
</ul>
</details>
<br />

[![Dependabot compatibility score](https://api.dependabot.com/badges/compatibility_score?dependency-name=either&package-manager=cargo&previous-version=1.5.2&new-version=1.5.3)](https://dependabot.com/compatibility-score/?dependency-name=either&package-manager=cargo&previous-version=1.5.2&new-version=1.5.3)

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)
- `@dependabot use these labels` will set the current labels as the default for future PRs for this repo and language
- `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language
- `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language
- `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language
- `@dependabot badge me` will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot [dashboard](https://app.dependabot.com):
- Update frequency (including time of day and day of week)
- Pull request limits (per update run and/or open at any time)
- Out-of-range updates (receive only lockfile updates, if desired)
- Security updates (receive only security updates, if desired)

</details>

Cargo.lock

@@ -1331,9 +1331,9 @@ dependencies = [
 
 [[package]]
 name = "either"
-version = "1.5.2"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5527cfe0d098f36e3f8839852688e63c8fff1c90b2b405aef730615f9a7bcf7b"
+checksum = "bb1f6b1ce1c140482ea30ddd3335fc0024ac7ee112895426e0a629a6c20adfe3"
 
 [[package]]
 name = "embedder_traits"