On re-setting up JSC release test bot for wincairo, ran into problems where it appeared that the requirements weren't there so jsc wouldn't run. Add step for getting them (like we do for layout test runs).
Pull request: https://github.com/WebKit/WebKit/pull/13258
Committed 263508@main (19ef7f2cb603): <https://commits.webkit.org/263508@main> Reviewed commits have been landed. Closing PR #13258 and removing active labels.
<rdar://problem/108669767>