test: enable add artifacts test

Author: fangyh20

tests/integration/test_session.py

@@ -372,14 +372,8 @@ def test_create_spark_session_with_session_template_and_user_provided_dataproc_c
     assert DataprocSparkSession._active_s8s_session_uuid is None
 
 
-@pytest.mark.skip(
-    reason="Skipping PyPI package installation test since it's not supported yet"
-)
 def test_add_artifacts_pypi_package():
-    """Test adding PyPI packages as artifacts to a Spark session.
-
-    Note: Skipped in CI due to infrastructure issues with PyPI package installation.
-    """
+    """Test adding PyPI packages as artifacts to a Spark session."""
     connect_session = DataprocSparkSession.builder.getOrCreate()
     from pyspark.sql.connect.functions import udf, sum
     from pyspark.sql.types import IntegerType