Update validates_hostname to 1.0.6 to fix a bug in parsing hexadecimal-looking domain names

validates_hostname <= 1.0.5 has a bug that breaks hostnames that could be interpreted as hexadecimal numbers. This is fixed in https://github.com/KimNorgaard/validates_hostname/pull/7

Update our version of the gem to one that includes this fix, and add a test for it.

/cc @cpallares @0x7cc

Can we get this into 8.15 do you think?

Closes #827 (closed)

added 721 commits

• b46d5756...f490a736 - 720 commits from branch gitlab-org:master
• a930645f - Update validates_hostname to 1.0.6 to fix a bug in parsing hexadecimal-looking domain names

Compare with previous version

assigned to @godfat

@nick.thomas I didn't audit what's changed for validates_hostname between 1.0.5 and 1.0.6, but this looks good to me, thanks!

enabled an automatic merge when the build for a930645f succeeds

mentioned in commit 699c6cad

merged

Thanks @nick.thomas :)

Picked into 8-15-stable-ee, will go into 8.15.0-rc4.

removed ~149424 label

mentioned in commit 1cb1e1e3