[CI] Disable command line input while adding PPA

Author: singhpratyush

.bin/install_apt.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # PPA for latest go
-sudo add-apt-repository ppa:longsleep/golang-backports
+sudo add-apt-repository -y ppa:longsleep/golang-backports
 
 sudo apt-get update
 sudo apt-get install -y $(grep -vE "^\s*#" apt-requirements.txt  | tr "\n" " ")