Mitigate jenkins faults reported by Upguard

[sxa]

Details private but can be shared with anyone in the team able to work on it.

[TiagoLucas22478]

Hey @sxa and other Adoptium committers,
What can we at the Foundation do for this issue to go easier?
There are some findings on UpGuard and we see this issue is not getting a lot of traction.

@mbarbero

[sxa]

Replying via email - many of them appear to be because we're using an Ubuntu-supported nginx and upguard may be objecting because it's not a later version.

[sxa]

server_tokens off; added to nginx configuration on jenkins and TRSS in order to remove the version number from HTTP responses.

EDIT 25/July: Same change applied to AWX server.

[sxa]

Struggling to find a suitable option in the CloudFlare UI that will allow the port 80 remediation (Upguard seems unwilling to accept anything that isn't a straight HTTP redirect)