tt CLI (2.8): `tt connect` allow to disconnect with Ctrl+C/Ctrl+\ if execution hung

**Product:** tt CLI
**Since:** tt 2.8.1
**Dev ticket:** 
**Root document:** https://www.tarantool.io/en/doc/latest/reference/tooling/tt_cli/connect/
**SME:** @ oleg-jukovec @ elhimov

# Details

Requested by @elhimov in https://github.com/tarantool/tt/commit/dda25cf2badf969752de556c89ab845882166ba9.