Migrate to `pydantic v2` #51

Job	Run time
qa-checks-and-unit-tests	1m 44s
integration-tests (tests/integration/adls_asset_test.py)	1m 47s
integration-tests (tests/integration/admin_test.py)	33s
integration-tests (tests/integration/atlan_tag_test.py)	2m 2s
integration-tests (tests/integration/api_asset_test.py)	1m 28s
integration-tests (tests/integration/connection_test.py)	31s
integration-tests (tests/integration/custom_package_test.py)	29s
integration-tests (tests/integration/custom_metadata_test.py)	2m 54s
integration-tests (tests/integration/data_studio_asset_test.py)	1m 37s
integration-tests (tests/integration/file_test.py)	2m 33s
integration-tests (tests/integration/gcs_asset_test.py)	1m 35s
integration-tests (tests/integration/glossary_test.py)	1m 11s
integration-tests (tests/integration/lineage_test.py)	1m 58s
integration-tests (tests/integration/persona_test.py)	1m 35s
integration-tests (tests/integration/preset_asset_test.py)	2m 20s
integration-tests (tests/integration/purpose_test.py)	3m 15s
integration-tests (tests/integration/query_parser_test.py)	30s
integration-tests (tests/integration/requests_test.py)	1m 48s
integration-tests (tests/integration/s3_asset_test.py)	1m 31s
integration-tests (tests/integration/test_client.py)	2m 27s
integration-tests (tests/integration/test_index_search.py)	2m 29s
integration-tests (tests/integration/test_sql_assets.py)	1m 42s
	37m 59s

Provide feedback