deps: Bump the npm-production group with 3 updates

[dependabot]

Bumps the npm-production group with 3 updates: acorn, web-vitals and postcss.

Updates acorn from 8.18.0 to 8.19.0

Commits

• 0e0ece7 Mark version 8.19.0
• c912cf2 Disallow additional subscripts before arrow in async arrow functions
• f180fd7 Add Unicode v18 support (#1458)
• ab47d42 Update test case for unexpected identifier character (#1456)
• f53ee5f Add a contributing.md file
• 5bd50cd Compare expression end instead of identity in parseSubscripts
• efd7a21 Delete trailing space
• e79ec9e Adjust dubious handling of doubleProto tracking in parseMaybeAssign
• 93e8b90 Upgrade some dependencies with known issues
• f065b20 Upgrade github actions to get rid of warning
• Additional commits viewable in compare view

Updates web-vitals from 6.2.2 to 6.2.3

Changelog

Sourced from web-vitals's changelog.

v6.2.3 (2026-10-05)

• Fix negative resourceLoadDuration in LCP attribution (#803)
• Fix INP clean-up bug causing memory leak (#799)

Commits

• 400d019 Release v6.2.3
• 248e6cb Prep CHANGELOG for v6.2.3
• eeda0f2 fix: ignore resources requested after LCP in LCP attribution (#803)
• 31b81e0 Soft Nav README tweaks (#801)
• 2d75789 Fix bad LCP buffer test (#800)
• 4a480a0 Fix INP clean-up bug causing memory leak (#799)
• See full diff in compare view

Updates postcss from 8.5.28 to 8.5.29

Release notes

Sourced from postcss's releases.

8.5.29

• Improved </style> escaping (by @​choudhryfrompak).
• Fixed comments support in list.comma() and list.space() (by @​00200200).
• Fixed semicolon and custom property (by @​wahidrizka).

Changelog

Sourced from postcss's changelog.

8.5.29

• Improved </style> escaping (by @​choudhryfrompak).
• Fixed comments support in list.comma() and list.space() (by @​00200200).
• Fixed semicolon and custom property (by @​wahidrizka).

Commits

• a7a1f34 Release 8.5.29 version
• b55a36d Update dependencies
• 7647a81 Escape </style> in output of non-Root nodes (#2163)
• 7ac9026 Do not split list.comma() and list.space() on separators inside comments (#2162)
• ebffa97 Add postcss-smooth-corners plugin
• 57d6401 Speed up source map cleaning
• 7e46a03 Speed up parser
• 7f5c417 Improve </style> protection for the case when beffore nodes have different parts
• 7ba9051 Fix useless ESLint warning
• 12b4161 Update dependencies
• Additional commits viewable in compare view

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[dependabot]

Looks like these dependencies are updatable in another way, so this is no longer needed.