Add openeo.cloud variant with support for 2.0.0 processes

[JeroenVerstraelen]

No description provided.

[soxofaan]

current openeo.cloud config uses these upstream backends:

openeo-aggregator/conf/aggregator.prod.py

Lines 46 to 50 in 646b1d7

	aggregator_backends={
	"vito": "https://openeo.vito.be/openeo/1.1/",
	"eodc": "https://openeo.eodc.eu/openeo/1.1.0/",
	# Sentinel Hub OpenEO by Sinergise
	"sentinelhub": "https://openeo.sentinel-hub.com/production/",

which use v1 version of processes as far as I know.

We should add a variant that supports v2 processes (e.g. like https://openeo.vito.be/openeo/1.2/)