community/dockviz: switch to go modules
From go 1.16, go modules are enabled by default, and govendor has been deprecated by the author.
Even though it still works, the dependencies for dockviz were outdated, which prevents this from being built on mips64. Specifically, github.com/docker/docker@v17.12.0-ce-rc1.0
pkg/system/stat_linux.go:11:3: cannot use s.Rdev (type uint32) as type uint64 in field value
This was fixed in docker 20.10.4.
The easiest way to fix this by ignoring the shipped vendor dir, and
initialized the modules from scratch with go mod init dockviz
. Using
that, it just builds without issue.
Note that this updates all dependencies to newer versions