T5210:VPN:Fix typo in Warning

[blank0608]

Change Summary

Fix typo in warning vti interface

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T5210

Component(s) name

vpn

Proposed changes

Edited line 458 in the vpn_ipsec.py file to fix the typo

How to test

set interfaces vti vti1 address '10.2.2.1/30'
set vpn ipsec authentication psk PSK id '192.168.100.184'
set vpn ipsec authentication psk PSK id '192.168.100.254'
set vpn ipsec authentication psk PSK secret 'SSSeeccRetT'
set vpn ipsec esp-group ESP-group lifetime '1800'
set vpn ipsec esp-group ESP-group mode 'tunnel'
set vpn ipsec esp-group ESP-group pfs 'enable'
set vpn ipsec esp-group ESP-group proposal 1 encryption 'aes256'
set vpn ipsec esp-group ESP-group proposal 1 hash 'sha256'
set vpn ipsec ike-group IKE-group key-exchange 'ikev1'
set vpn ipsec ike-group IKE-group lifetime '3600'
set vpn ipsec ike-group IKE-group proposal 1 encryption 'aes256'
set vpn ipsec ike-group IKE-group proposal 1 hash 'sha256'
set vpn ipsec interface 'eth1'
set vpn ipsec site-to-site peer OFFICE-B authentication local-id '192.168.100.254'
set vpn ipsec site-to-site peer OFFICE-B authentication mode 'pre-shared-secret'
set vpn ipsec site-to-site peer OFFICE-B authentication remote-id '192.168.100.184'
set vpn ipsec site-to-site peer OFFICE-B connection-type 'initiate'
set vpn ipsec site-to-site peer OFFICE-B dhcp-interface 'eth0'
set vpn ipsec site-to-site peer OFFICE-B ike-group 'IKE-group'
set vpn ipsec site-to-site peer OFFICE-B remote-address '192.168.100.184'
set vpn ipsec site-to-site peer OFFICE-B vti bind 'vti1'
set vpn ipsec site-to-site peer OFFICE-B vti esp-group 'ESP-group'
vyos@vyos# commit
[ vpn ipsec ]

WARNING: It's recommended to use ipsec vti with the next command
[set vpn ipsec option disable-route-autoinstall]

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[c-po]

Please use a whitespace delimiter in your commit message before VPN