* Fixed: http panic when url is invalid

Co-authored-by: Ahmed Elsabbahy <aelsabbahy@users.noreply.github.com>

* Added: warning when duplicate keys cause tests to be overwritten

* Remove unused log levels, update doc, set default level to info

Kept ERROR as it can be useful for silencing warnings

* Implement log feedback and fix broken CI

* Default programatic log level to ERROR (FATAL no longer exists)

Took this as an opportunity to migrate yaml.v2 -> yaml.v3 which allowed
removing the conversion code that existed in goss.

The need to convert back and forth between map[interface{}]interface{} and
map[string]inteface{} is no longer present with the new version of the
yaml library.

fixes #846 #848

Bumps [golang.org/x/net](https://github.com/golang/net) from 0.14.0 to 0.17.0.
- [Commits](golang/net@v0.14.0...v0.17.0)

---
updated-dependencies:
- dependency-name: golang.org/x/net
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

closes #845