data.email should NOT be shorter than 8 characters #845

[nikhen]

Change minimum value for characters in mail address from 8 to 6.

Seems to be a valid point in #845

> ping a.ie
PING a.ie (79.170.244.15) 56(84) bytes of data.
64 bytes from parking.irishdomains.com (79.170.244.15): icmp_seq=1 ttl=63 time=37.8 ms
64 bytes from parking.irishdomains.com (79.170.244.15): icmp_seq=2 ttl=63 time=38.3 ms
64 bytes from parking.irishdomains.com (79.170.244.15): icmp_seq=3 ttl=63 time=37.6 ms
^C
--- a.ie ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2024ms
rtt min/avg/max/mdev = 37.634/37.932/38.317/0.285 ms

See also: https://answers.microsoft.com/en-us/outlook_com/forum/all/what-is-the-minimum-number-of-characters-allowed/fbfea6fd-7ba2-4d13-abab-50d9f71719a5

[jc21]

This is an automated message from CI:

Docker Image for build 1 is available on DockerHub as jc21/nginx-proxy-manager:github-pr-1399

Note: ensure you backup your NPM instance before testing this PR image! Especially if this PR contains database changes.