Upgrade to Go v1.18

[ndeloof]

- What I did
Bump go to v1.18 in project

- How I did it
Just changed go version and updated vendor, using CI to check anything breaks

- How to verify it
isn't this what CI is for :P

- Description for the changelog
docker CLI is now built with Go v1.18

- A picture of a cute animal (not mandatory but encouraged)

[DasSkelett]

I suspect the work in #3383 has to be completed before an update to 1.18 can be considered.

I also don't think blindly bumping the go directive in go.mod makes sense, until features from Go 1.18 are used.

[ndeloof]

as noted, the goal of this draft PR was just to check the potential impact, so we have a better idea about the missing bits before we can benefit from go 1.18 features