gopkg.in/yaml.v3 is not maintained
### Problem to solve
<!-- What problem do we solve? Try to define the who/what/why of the opportunity as a user story. For example, "As a (who), I want (what), so I can (why/value)." -->
`gopkg.in/yaml.v3` is not maintained
### Proposal
<!-- How are we going to solve the problem? -->
Replace `gopkg.in/yaml.v3` with `go.yaml.in/yaml/v3`.
### Further details
<!-- Include examples, use cases, benefits, goals, or any other details that will help us understand the problem better. -->
Repo for `gopkg.in/yaml.v3` was archived in 2025-04 and `go.yaml.in/yaml/v3` it's a drop-in replacement.
### Links / references
- https://github.com/go-yaml/yaml#this-project-is-unmaintained
- https://github.com/yaml/go-yaml/tree/v3/#project-status
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