fix(ci): move pro-source tests into the pro submodule

The main CI doesn't check out the private pro/ submodule (and tsconfig excludes
pro/**), so __tests__/unit/pro/*.test.ts — which import pro source directly —
failed lint/typecheck/test in CI. The tests now live in pro/__tests__ (pushed in
the pro repo). Bumps the pro submodule pointer to include them.

Co-Authored-By: Dishit Karia <hanmadishit74@gmail.com>

Author: dishit-wednesday