Introduce `asdf.util.load_yaml` #2827

Job	Run time
pre-commit	13s
jsonschema	0s
core / Load tox environments	6s
core / Python 3.12 coverage	2m 54s
core / Python 3.11 coverage	1m 56s
core / Python 3.10 coverage	2m 5s
core / Python 3.9 coverage	2m 0s
asdf-schemas / Load tox environments	6s
asdf-schemas / asdf-standard (ubuntu-latest)	48s
asdf-schemas / asdf-transform-schemas (ubuntu-latest)	1m 4s
asdf-schemas / asdf-unit-schemas (ubuntu-latest)	41s
oldest / Load tox environments	4s
compatibility / Load tox environments	8s
dev / Load tox environments	6s
package / Build source and wheel distribution	2m 44s
test / Load tox environments	3s
oldest / py39-oldestdeps-parallel (ubuntu-latest)	1m 3s
test / py39-parallel (macos-latest)	1m 1s
test / py39-parallel (windows-latest)	2m 9s
dev / py39-devdeps-parallel (ubuntu-latest)	1m 40s
dev / py310-devdeps-parallel (ubuntu-latest)	1m 49s
dev / py311-devdeps-parallel (ubuntu-latest)	1m 36s
dev / py312-devdeps-parallel (ubuntu-latest)	2m 9s
compatibility / compatibility (ubuntu-latest)	2m 43s
	29m 8s

Provide feedback