Bounding boxes can have xmin greater than xmax if they cross the antimeridian

[gadomski]

The validation at

stac-pydantic/stac_pydantic/api/search.py

Lines 90 to 93 in 86f7303

	if xmax < xmin:
	raise ValueError(
	"Maximum longitude must be greater than minimum longitude"
	)

is too strict. According to the GeoJSON spec, bboxes's first element should be larger than their third element if they cross the antimeridian: https://datatracker.ietf.org/doc/html/rfc7946#section-5.2.

I came across this issue due to a failing test in stac-fastapi-sqlalchemy on this geometry.