[Pkg-nginx-maintainers] NGINX 1.22.0 released upstream, imported into Master

[Thomas Ward]

Hello.

Today, NGINX uploaded 1.22.0 to the Internet and released the new stable 
version.

To that end, I have done a `gbp import-orig` and got 1.22.0 available in 
the Master branch.

Unfortunately, a signing key got updated.  The package was signed by 
Konstantin Pavlov <k.pavlov at f5.com> <thresh at nginx.com>. As such, I had 
to update d/upstream/signing-key.asc to add Konstantin's pubkey to the 
signatures so uscan properly validates the signatures.

Note that I'm keeping the original signing key from Maxim still present 
in d/upstream/signing-key.asc as well and added multiple comments into 
the keyfile as to obervations, which key corresponds to which signers, etc.



Thomas