alter email in partner table and make it required

gso/db/models.py

@@ -33,18 +33,19 @@ class PartnerTable(BaseModel):
     __tablename__ = "partners"
 
     partner_id = mapped_column(String, server_default=text("uuid_generate_v4"), primary_key=True)
-    name = mapped_column(String, unique=True)
-    email = mapped_column(String, unique=True, nullable=True)
+    name = mapped_column(String, unique=True, nullable=True)
+    email = mapped_column(String, unique=True, nullable=False)
+    partner_type = mapped_column(Enum(PartnerType), nullable=False)
+
     as_number = mapped_column(
-        String, unique=True
+        String, unique=True, nullable=True
     )  # the as_number and as_set are mutually exclusive. if you give me one I don't need the other
-    as_set = mapped_column(String)
+    as_set = mapped_column(String, nullable=True)
     route_set = mapped_column(String, nullable=True)
     black_listed_as_sets = mapped_column(ARRAY(String), nullable=True)
     additional_routers = mapped_column(ARRAY(String), nullable=True)
     additional_bgp_speakers = mapped_column(ARRAY(String), nullable=True)
 
-    partner_type = mapped_column(Enum(PartnerType), nullable=False)
     created_at = mapped_column(UtcTimestamp, server_default=text("current_timestamp"), nullable=False)
     updated_at = mapped_column(
         UtcTimestamp, server_default=text("current_timestamp"), nullable=False, onupdate=text("current_timestamp")