migrate prefect-email to pydantic2 (#13654)

src/integrations/prefect-email/prefect_email/credentials.py

@@ -6,15 +6,10 @@
 from smtplib import SMTP, SMTP_SSL
 from typing import Optional, Union
 
-from pydantic import VERSION as PYDANTIC_VERSION
+from pydantic import Field, SecretStr, field_validator
 
 from prefect.blocks.core import Block
 
-if PYDANTIC_VERSION.startswith("2."):
-    from pydantic.v1 import Field, SecretStr, validator
-else:
-    from pydantic import Field, SecretStr, validator
-
 
 class SMTPType(Enum):
     """
@@ -133,15 +128,16 @@ class EmailServerCredentials(Block):
         title="SMTP Port",
     )
 
-    @validator("smtp_server", pre=True)
-    def _cast_smtp_server(cls, value):
+    @field_validator("smtp_server", mode="before")
+    def _cast_smtp_server(cls, value: str):
         """
         Cast the smtp_server to an SMTPServer Enum member, if valid.
         """
         return _cast_to_enum(value, SMTPServer)
 
-    @validator("smtp_type", pre=True)
-    def _cast_smtp_type(cls, value):
+    @field_validator("smtp_type", mode="before")
+    @classmethod
+    def _cast_smtp_type(cls, value: str):
         """
         Cast the smtp_type to an SMTPType Enum member, if valid.
         """

src/integrations/prefect-email/tests/conftest.py

@@ -5,7 +5,7 @@
 from prefect.testing.utilities import prefect_test_harness
 
 
-@pytest.fixture(autouse=True)
+@pytest.fixture(autouse=True, scope="session")
 def prefect_db():
     with prefect_test_harness():
         yield