Auto merge of #26796 - servo:dependabot/cargo/indexmap-1.4.0, r=jdm

build(deps): bump indexmap from 1.3.2 to 1.4.0

Bumps [indexmap](https://github.com/bluss/indexmap) from 1.3.2 to 1.4.0.
<details>
<summary>Commits</summary>
<ul>
<li><a href="da1835123c"><code>da18351</code></a> 1.4.0</li>
<li><a href="6e929fa728"><code>6e929fa</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/bluss/indexmap/issues/124">#124</a> from cuviper/rerun_path</li>
<li><a href="b6c596319b"><code>b6c5963</code></a> Use a plain relative path for autocfg::rerun_path</li>
<li><a href="e603553039"><code>e603553</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/bluss/indexmap/issues/120">#120</a> from bluss/get-index-of</li>
<li><a href="f2142d99bd"><code>f2142d9</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/bluss/indexmap/issues/121">#121</a> from bluss/update-dev-version</li>
<li><a href="42affec83e"><code>42affec</code></a> FIX: Update benchmarks for rand 0.7</li>
<li><a href="155f6b2d6a"><code>155f6b2</code></a> Merge PR <a href="https://github-redirect.dependabot.com/bluss/indexmap/issues/112">#112</a></li>
<li><a href="a0da5e1bce"><code>a0da5e1</code></a> MAINT: Update rust version for dev/CI to 1.32</li>
<li><a href="1b54c5ecef"><code>1b54c5e</code></a> FIX: Rename entry_index to get_index_of</li>
<li><a href="27f384d560"><code>27f384d</code></a> Remove unused parens</li>
<li>Additional commits viewable in <a href="https://github.com/bluss/indexmap/compare/1.3.2...1.4.0">compare view</a></li>
</ul>
</details>
<br />

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Cargo.lock

@@ -2587,9 +2587,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.3.2"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "076f042c5b7b98f31d205f1249267e12a6518c1481e9dae9764af19b707d2292"
+checksum = "c398b2b113b55809ceb9ee3e753fcbac793f1956663f3c36549c1346015c2afe"
 dependencies = [
  "autocfg",
 ]