Extracted from the semver-compatible lockfile upgrade PR (commits f8300ce chai + 5892f83 chai types).

• chai ^4.5.0 → ^6.2.2 and @types/chai ^4 → ^5.2.3 in ~27 packages.
• configs/mocha-config-devtools/package.json: chai-dom ^1.9.0 → ^1.12.1.
• Fallout: new packages/mql-typescript/tsconfig.tests.json + test script change from tsc --noEmit tests/*/.ts to tsc -p tsconfig.tests.json, because @types/chai 5 augments Object.prototype.should and collides with the Atlas Search compound operator.
• Adds @types/minimist to packages/download-url/package.json.

Major version across every package — own PR.