update preprocessor and core to use v3 values, preprocessor stac output created even when already preprocessed
- update vhr15 and ua2012 configs accordingly
- instead of v3 with v2 values like OS_TENANT_NAME or OS_TENANT_ID
- preprocessor stac output created even when already preprocessed (with files on remote)
- allow to configure
target.expected_files
in preprocessor, as this can now differ between collections (2 vs 3)