chore(deps): update linting dependencies

[MikeMcC399]

Situation

• Multiple devDependencies used for linting are outdated

• npm audit reports vulnerabilities

Change

Update:

1. eslint-related dependencies
2. prettier
3. markdown-link-check

Update package.json engines field from >=20.18.1. to >=20.19.0, since this is the minimum for ESLint 10.x.

This does not affect building images with Node.js as this is containerized and independent from the Node.js version installed in the Docker host system.

Verification

npm ci
npm run format:check
npm run lint
npm run check:markdown
npm audit

No errors should be reported. (See also PR #1474 for one link correction.)

[cypress-app-bot]

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