tools/signing/gatekeeper-bundling.sh tries to use projects/browser/Bundle-Data/mac-applications.dmg

tools/signing/gatekeeper-bundling.sh tries to use projects/browser/Bundle-Data/mac-applications.dmg, however this directory was removed in 7855f0b6.

/cc @pierov

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information