chore(deps): bump postcss from 8.4.49 to 8.5.10

[dependabot]

Bumps postcss from 8.4.49 to 8.5.10.

Release notes

Sourced from postcss's releases.

8.5.10

• Fixed XSS via unescaped </style> in non-bundler cases (by @​TharVid).

8.5.9

• Speed up source map encoding paring in case of the error.

8.5.8

• Fixed Processor#version.

8.5.7

• Improved source map annotation cleaning performance (by CodeAnt AI).

8.5.6

• Fixed ContainerWithChildren type discriminating (by @​Goodwine).

8.5.5

• Fixed package.json→exports compatibility with some tools (by @​JounQin).

8.5.4

• Fixed Parcel compatibility issue (by @​git-sumitchaudhary).

8.5.3

• Added more details to Unknown word error (by @​hiepxanh).
• Fixed types (by @​romainmenke).
• Fixed docs (by @​catnipan).

8.5.2

• Fixed end position of rules with semicolon (by @​romainmenke).

8.5.1

• Fixed backwards compatibility for complex cases (by @​romainmenke).

8.5 “Duke Alloces”

PostCSS 8.5 brought API to work better with non-CSS sources like HTML, Vue.js/Svelte sources or CSS-in-JS.

@​romainmenke during his work on Stylelint added Input#document in additional to Input#css.

root.source.input.document //=> "<p>Hello</p>
                           //    <style>
                           //    p {
                           //      color: green;
                           //    }
                           //    </style>"
root.source.input.css      //=> "p {
                           //      color: green;
                           //    }"
</tr></table>

... (truncated)

Changelog

Sourced from postcss's changelog.

8.5.10

• Fixed XSS via unescaped </style> in non-bundler cases (by @​TharVid).

8.5.9

• Speed up source map encoding paring in case of the error.

8.5.8

• Fixed Processor#version.

8.5.7

• Improved source map annotation cleaning performance (by CodeAnt AI).

8.5.6

• Fixed ContainerWithChildren type discriminating (by @​Goodwine).

8.5.5

• Fixed package.json→exports compatibility with some tools (by @​JounQin).

8.5.4

• Fixed Parcel compatibility issue (by @​git-sumitchaudhary).

8.5.3

• Added more details to Unknown word error (by @​hiepxanh).
• Fixed types (by @​romainmenke).
• Fixed docs (by @​catnipan).

8.5.2

• Fixed end position of rules with semicolon (by @​romainmenke).

8.5.1

• Fixed backwards compatibility for complex cases (by @​romainmenke).

8.5 “Duke Alloces”

• Added Input#document for sources like CSS-in-JS or HTML (by @​romainmenke).

Commits

• 33b9790 Release 8.5.10 version
• 536c79e Escape </style> in CSS output (#2074)
• afa96b2 Update dependencies (#2073)
• effe88b Typo (#2072)
• 3ee79a2 Thread model (#2071)
• 2e0683d Create incident response docs (#2070)
• fe88ac2 Release 8.5.9 version
• c551632 Avoid RegExp when we can use simple JS
• 89a6b74 Move SECURITY.txt for docs folder to keep GitHub page cleaner
• 6ceb8a4 Create SECURITY.md
• Additional commits viewable in compare view

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Project	Deployment	Actions	Updated (UTC)
langfuse-docs	Ready	Preview, Comment	May 15, 2026 1:50pm

[claude]

LGTM, dependabot bump including a postcss XSS fix.

Extended reasoning...

Overview

Dependabot bump of postcss from 8.4.49 to 8.5.10 in package.json plus the corresponding pnpm-lock.yaml updates. The lockfile changes also reflect transitive AWS SDK / smithy / fast-xml-parser version drift, all of which are minor/patch versions.

Security risks

None introduced — in fact, 8.5.10 ships a fix for XSS via unescaped </style> in non-bundler cases. The other changelog entries are bug fixes and perf improvements. No code changes accompany the bump.

Level of scrutiny

Low. This is a dev/build-time CSS toolchain dependency in a docs site, not production-critical request-handling code. The semver range was already ^8.4.49, so any consumer of the lockfile was eligible for these versions; this PR simply makes the floor explicit.

Other factors

Vercel preview build is running. Standard dependabot PR pattern in this repo (e.g. recent commit 0c5159f is the same kind of bump). No bugs flagged by the bug hunting system.