[WIP] Centralize yaml configurations into conda_build.yaml

[kenodegard]

Description

PyYAML uses interesting defaults that we've often sought to override (e.g., yaml.dump(default_flow_style=False)). To ensure we do a better job of consistently applying the same standard to all of our yaml.load/yaml.dump calls we introduce conda_build.yaml with all of our customizations.

Extends #5284

Checklist - did you ...

• Add a file to the news directory (using the template) for the next release's release notes?
• Add / update necessary tests?
• Add / update outdated documentation?

[codspeed-hq]

CodSpeed Performance Report

Merging #5285 will not alter performance

_{Comparing kenodegard:yaml (52aae52) with main (b1310ca)}

Summary

✅ 3 untouched benchmarks

[github-actions]

Hi there, thank you for your contribution!

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed automatically if no further activity occurs.

If you would like this pull request to remain open please:

1. Rebase and verify the changes still work
2. Leave a comment with the current status

NOTE: If this pull request was closed prematurely, please leave a comment.

Thanks!

[github-actions]

Hi there, thank you for your contribution!

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed automatically if no further activity occurs.

If you would like this pull request to remain open please:

1. Rebase and verify the changes still work
2. Leave a comment with the current status

NOTE: If this pull request was closed prematurely, please leave a comment.

Thanks!