Auto merge of #29473 - servo:dependabot/cargo/pest-2.5.6, r=mukilan

Bump pest from 2.5.5 to 2.5.6

Bumps [pest](https://github.com/pest-parser/pest) from 2.5.5 to 2.5.6.
<details>
<summary>Commits</summary>
<ul>
<li><a href="f294ead3e1"><code>f294ead</code></a> doc: added a note regarding the no_std support (<a href="https://github-redirect.dependabot.com/pest-parser/pest/issues/819">#819</a>)</li>
<li><a href="ebb1ccd930"><code>ebb1ccd</code></a> fix: grammar <code>////</code> parsing error. (fixes <a href="https://github-redirect.dependabot.com/pest-parser/pest/issues/817">#817</a>) (<a href="https://github-redirect.dependabot.com/pest-parser/pest/issues/818">#818</a>)</li>
<li><a href="18ca64fb8c"><code>18ca64f</code></a> Update benchmark result typo (with Pest v2.5.2 as base line). (<a href="https://github-redirect.dependabot.com/pest-parser/pest/issues/794">#794</a>)</li>
<li><a href="ac89744825"><code>ac89744</code></a> Fix multiple grammars not always recompile issue <a href="https://github-redirect.dependabot.com/pest-parser/pest/issues/789">#789</a> (<a href="https://github-redirect.dependabot.com/pest-parser/pest/issues/790">#790</a>)</li>
<li>See full diff in <a href="https://github.com/pest-parser/pest/compare/v2.5.5...v2.5.6">compare view</a></li>
</ul>
</details>
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Cargo.lock

@@ -4572,9 +4572,9 @@ checksum = "478c572c3d73181ff3c2539045f6eb99e5491218eae919370993b890cdbdd98e"
 
 [[package]]
 name = "pest"
-version = "2.5.5"
+version = "2.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "028accff104c4e513bad663bbcd2ad7cfd5304144404c31ed0a77ac103d00660"
+checksum = "8cbd939b234e95d72bc393d51788aec68aeeb5d51e748ca08ff3aad58cb722f7"
 dependencies = [
  "thiserror",
  "ucd-trie",