Update crowdsec-v3.sh

misc/crowdsec-v3.sh

@@ -66,6 +66,7 @@ curl -s https://packagecloud.io/install/repositories/crowdsec/crowdsec/script.de
 msg_ok "Setup ${APP} Repository"
 
 msg_info "Installing ${APP}"
+apt-get update &>/dev/null
 apt-get install -y crowdsec &>/dev/null
 msg_ok "Installed ${APP}"