v1.2.1

What's Changed

• feat: add multi-architecture Docker images for setup-cpp by @aminya in #361
• feat: install LLVM via brew on Mac if possible by @aminya in #367 and #364
• feat: add git as an installable tool by @aminya in #362
• fix: avoid already installed warnings for brew by @aminya in #369
• fix: add polyfill for crypto.randomuuid for Node 12 by @aminya in #368 and #370

Full Changelog: v1.1.1...v1.2.0