fix: remove unused pytest import in test_catalog_v1.py

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Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: jontsai

tests/test_vendor/test_catalog_v1.py

@@ -1,6 +1,4 @@
 """Tests for catalog v1 parser, specifically testing extra fields handling."""
-import pytest
-
 from vendor.dbt_artifacts_parser.parsers.catalog.catalog_v1 import Metadata