Merge branch 'r3_ingestion_updates' into 'master'

.gitlab-ci.yml

README.md

src/dags/libs/process_manifest_r3.py

src/plugins/operators/process_manifest_r2.py

src/plugins/operators/process_manifest_r3.py

tests/end-to-end-tests/mock-data/osdu-ingest-r2-invalid.json

tests/end-to-end-tests/mock-data/osdu-ingest-r2-valid.json

tests/plugin-unit-tests/data/process_manifest_r2_op.py

tests/plugin-unit-tests/test_manifest_processor_r3.py

tests/plugin-unit-tests/test_process_manifest_r2.py