Update dependencies, quic-go 1.22

[Letgamer]

Bump ARG GOVERSION=1.20.10 to ARG GOVERSION=1.20.12 and ARG ALPINEVERSION=3.18 to ARG ALPINEVERSION=3.19 in order to mitigate 4 security vulnerabilities:
https://hub.docker.com/layers/library/golang/1.20.10-alpine3.18/images/sha256-227c6cde748db2128aa5112d3cfa0e092e12f2d271247333f59ba6e1b6f91cfb?context=explore

Also note that after the release of go 1.22rc1 major changes in quic-go are happening. Support for 1.20 will be dropped and rc1 will be supported!
It is expected that quic-go will support newer go versions way faster in the future.

[Letgamer]

Note that I already tested it with updated dependencies