chore(deps): update dependency mocha to v12.0.0-beta-9.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
mocha (source)	12.0.0-beta-9.3 → 12.0.0-beta-9.4

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Release Notes

mochajs/mocha (mocha)

v12.0.0-beta-9.4

Compare Source

⚠ BREAKING CHANGES

• remove unused legacy errors.js functions (#​5835)

🩹 Fixes

• deps: update dependency @​astrojs/starlight to ^0.39.0 (#​5952) (eed10ac)

📚 Documentation

• add TypeScript setup guide (#​5863) (af63dcf)
• fix correctness issues in error codes, CLI defaults, and config docs (#​5860) (bd54205)
• modernize DEVELOPMENT.md for new contributors (#​5865) (5122ad7)

🧹 Chores

• convert lib/cli/cli.mjs to ESM (#​5909) (6e91a89)
• convert dot, min, and list reporters to esm (#​5907) (b19b696)
• convert run-option-metadata and exports interface to ESM (#​5910) (27b0814)
• deps: update dependency @​types/node to v24 (#​5958) (ef113d7)
• deps: update dependency eslint to v10.3.0 (#​5945) (18cf178)
• deps: update dependency eslint-plugin-n to v18 (#​5948) (99f0e4a)
• deps: update dependency globals to v17.6.0 (#​5946) (412070c)
• deps: update dependency knip to v6.12.1 (#​5942) (e29003d)
• deps: update dependency knip to v6.6.1 (#​5927) (7c48496)
• deps: update dependency knip to v6.7.0 (#​5933) (441c32a)
• deps: update dependency nyc to v18 (#​5846) (1fea247)
• deps: update dependency semver to v7.8.0 (#​5957) (0cbb43c)
• deps: update dependency sinon to v22 (#​5949) (54dcfda)
• deps: update dependency webpack-cli to v7 (#​5871) (9d367e1)
• deps: update googleapis/release-please-action action to v5 (#​5929) (f32085f)
• dev-deps: upgrade webpack from v6 to v7 + remove obsolete fail-on-errors-webpack-plugin (#​5908) (103ad41)
• document CJS and MJS config file priority (#​5923) (09a1106)
• fix Knip issues (#​5919) (1b3d604)
• migrate core interfaces and utilities to ESM (#​5930) (1ad23ab)
• migrate reporters to ESM (#​5928) (f6a62ca)
• remove unused legacy errors.js functions (#​5835) (4116368)
• tag alpha releases as alpha, not next (#​5951) (8e29413), closes #​5947

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