release: put branches in /branches on the snapshots server
release: put branches in /branches on the snapshots server

This is a precautionary measure to prevent a clash in case we have a branch
with the same name as a tag. Tags live in the top-level directory, because
these are releases that users will most often access directly.

vhaupert/mitmproxy,mhils/mitmproxy,mitmproxy/mitmproxy,cortesi/mitmproxy,cortesi/mitmproxy,mitmproxy/mitmproxy,Kriechi/mitmproxy,mitmproxy/mitmproxy,ujjwal96/mitmproxy,Kriechi/mitmproxy,vhaupert/mitmproxy,zlorb/mitmproxy,ujjwal96/mitmproxy,ujjwal96/mitmproxy,mitmproxy/mitmproxy,zlorb/mitmproxy,vhaupert/mitmproxy,vhaupert/mitmproxy,zlorb/mitmproxy,Kriechi/mitmproxy,mhils/mitmproxy,mitmproxy/mitmproxy,mhils/mitmproxy,zlorb/mitmproxy,cortesi/mitmproxy,ujjwal96/mitmproxy,Kriechi/mitmproxy,mhils/mitmproxy,cortesi/mitmproxy,mhils/mitmproxy