Use new cctools in our macosx-toolchain project

Solving #9711 (moved) gives us a new cctools which we should use in our macosx-toolchain project.

added GeorgKoppen201805 TorBrowserTeam201806R component::applications/tor browser ff60-esr owner::tbb-team parent::24632 priority::very high resolution::fixed severity::normal status::closed tbb-rbm type::defect labels

Adjusting prios of some tickets.

Trac:
Priority: High to Very High

bug_261952_v2 (https://gitweb.torproject.org/user/gk/tor-browser-build.git/commit/?h=bug_26195_v2&id=76b53ffbc09fa13bda1d6e88f6740ed3c78da3af) starts using our new macOS toolchain.

Trac:
Status: new to needs_review
Keywords: TorBrowserTeam201805 deleted, TorBrowserTeam201805R added

Moving review tickets to June.

Trac:
Keywords: TorBrowserTeam201805R deleted, TorBrowserTeam201806R added

This looks good to me. Cherry-picked as commit 5cf384c54a0dfd3edd44373bb9370e549fcf64f8.

Trac:
Status: needs_review to closed
Resolution: N/A to fixed

closed

moved to tpo/applications/tor-browser#26195 (closed)