support resample in load_collection for proba-v

[jdries]

see:
199acc7
b1a5bcc

https://jenkins.vgt.vito.be/job/openEO/job/openeo-integrationtests/699/

These integrationtests were failing when switching:
openeo-cropsar-integrationtests.test_custom_cropsar1.test_calculate_cropsar1[1.0.0]
openeo-geopyspark-integrationtests.tests.test_integration.test_load_collection_references_correct_batch_process_id[1.1.0]
openeo-geopyspark-integrationtests.tests.test_integration.test_sentinel_hub_execute_batch[1.1.0]
openeo-geopyspark-integrationtests.tests.test_integration.test_batch_job_delete_job[1.1.0]
openeo-geopyspark-integrationtests.tests.test_integration.test_merge_cubes[1.1.0]
openeo-geopyspark-integrationtests.tests.test_integration.test_udp_simple_math_batch_job[1.1.0]
nextland.tests.openeo_integrationtest.test_yield_potential_maps.testBDBBulk[1.0.0]
openeo-geopyspark-integrationtests.tests.test_integration.test_point_timeseries_from_batch_process[1.1.0]