Update undici to 5.8.2

What does this MR do and why?

Updates the transitive dependency undici from 5.8.0 to 5.8.2.

See #395259 (closed) for more details.

• Release notes: 5.8.2, 5.8.1
• Package diff
• Commits/changelog

What is this package for?

It's needed for GraphQL linting:

$ yarn why undici
yarn why v1.22.19
[1/4] Why do we have the module "undici"...?
[2/4] Initialising dependency graph...
[3/4] Finding dependency...
[4/4] Calculating file sizes...
info 
=> Found "undici@5.8.2"
info Reasons this module exists
   - "@graphql-eslint#eslint-plugin#graphql-config#@graphql-tools#url-loader#cross-undici-fetch" depends on it
   - Hoisted from "@graphql-eslint#eslint-plugin#graphql-config#@graphql-tools#url-loader#cross-undici-fetch#undici"
info Disk size without dependencies: "1.14MB"
info Disk size with unique dependencies: "1.14MB"
info Disk size with transitive dependencies: "1.14MB"
info Number of shared dependencies: 0
Done in 0.34s.

Screenshots or screen recordings

n/a

How to set up and validate locally

1. Does the pipeline pass?

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #395259 (closed)