Update dependency ts-loader to v9.2.6

Editor assessment

Updating ts-loader to v9.2.6 is stated exactly, with chore(deps) correctly typing and scoping the maintenance bump. The subject fully identifies the change, so no diff needs opening to know what happened. There is no body, and for a build-tooling version update driven by the upstream changelog none is required — the complete single line is sufficient communication. No footers appear, and none are needed. Hygiene is clean: imperative mood, no trailing period, compact length, and no pasted content, malformed tokens, or misleading phrasing anywhere in the message.