Use mingw-w64/clang toolchain to build tor

We should switch to our mingw-w64/clang toolchain to build tor.

Trac:
Parent Ticket: #29318 (moved)
Child Ticket(s): #29322 (moved), #29323 (moved), #29324 (moved)

added component::applications/tor browser gitlab-tb-tor-browser-build owner::tbb-team parent::29318 priority::medium severity::normal status::new tbb-rbm type::defect labels

Add magic gitlab keyword.

Trac:
Keywords: N/A deleted, gitlab-tb-tor-browser-build added

mentioned in issue #31828 (moved)

mentioned in issue #29323 (moved)

mentioned in issue #29324 (moved)

mentioned in issue #29322 (moved)

mentioned in issue #29318 (moved)

moved to tpo/applications/tor-browser-build#29321 (closed)

mentioned in issue tpo/applications/tor-browser-build#31828 (closed)