feat(tem): remove the subject 6 char limitation (#1388)

Co-authored-by: Jonathan R. <jremy@scaleway.com>

Author: scaleway-bot

scaleway-async/scaleway_async/tem/v1alpha1/api.py

@@ -117,7 +117,7 @@ async def create_email(
     ) -> CreateEmailResponse:
         """
         Send an email.
-        You must specify the `region`, the sender and the recipient's information and the `project_id` to send an email from a checked domain. The subject of the email must contain at least 6 characters.
+        You must specify the `region`, the sender and the recipient's information and the `project_id` to send an email from a checked domain.
         :param from_: Sender information. Must be from a checked domain declared in the Project.
         :param subject: Subject of the email.
         :param text: Text content.

scaleway/scaleway/tem/v1alpha1/api.py

@@ -117,7 +117,7 @@ def create_email(
     ) -> CreateEmailResponse:
         """
         Send an email.
-        You must specify the `region`, the sender and the recipient's information and the `project_id` to send an email from a checked domain. The subject of the email must contain at least 6 characters.
+        You must specify the `region`, the sender and the recipient's information and the `project_id` to send an email from a checked domain.
         :param from_: Sender information. Must be from a checked domain declared in the Project.
         :param subject: Subject of the email.
         :param text: Text content.