Golang and Alpine image bumps

[macedogm]

This PR does:

1. Bump Golang and Alpine image versions to golang:1.20-alpine3.17 following PR Bump golang from 1.19-alpine3.16 to 1.20-alpine3.16 #164.
2. Fixes a CI script failure (see failed pipeline) due to an update to Busybox's version. Part of the fix comes from Fix CI tests on Alpine 3.17 k3s#6744.
   1. This fix requires to add the package findutils to Dockerfile.test.dapper in order for find to support printf).
      1. Re-ordered alphabetically the packages installed by apk.
   2. Also re-ordered the parameters -mindepth 2 -maxdepth 2 -type d to make them work as expected and avoid failure:

find: warning: you have specified the global option -mindepth after the argument -type, but global options are not positional, i.e., -mindepth affects tests specified before it as well as those specified after it.  Please specify global options before other arguments.
find: warning: you have specified the global option -maxdepth after the argument -type, but global options are not positional, i.e., -maxdepth affects tests specified before it as well as those specified after it.  Please specify global options before other arguments.

[macedogm]

@brandond CC