Update typescript-eslint monorepo to v4.19.0

Editor assessment

Updating the typescript-eslint monorepo to v4.19.0 states the dependency group and the target version, which is precise for a monorepo-wide pin. The chore(deps) type and scope fit the maintenance bump. The subject identifies the change completely without a diff. No body follows, and for a lint-tooling update none is owed; no footers appear, none being needed. Hygiene is clean: imperative mood, no trailing period, reasonable subject length, no ticket junk, no pasted content. A routine tooling refresh communicated in one complete, unambiguous line.