SIENTIAPDE-1172

refactor: rename send_email method to try_send_email and update parameter type

- Renamed the send_email method to try_send_email for clarity in its purpose.
- Changed the receivers parameter type from list[str] to str to simplify the method signature.

orchestrator/activities/email.py

@@ -101,7 +101,7 @@ class Email(BaseActivity):
 
         return msg
 
-    def send_email(self, msg: MIMEMultipart, receivers: list[str]):
+    def try_send_email(self, msg: MIMEMultipart, receivers: str):
         """
         Sends an email to the receivers.
         """
@@ -167,7 +167,7 @@ class Email(BaseActivity):
                         if notification.get('attachment_content') is not None],
                     msg)
 
-                self.send_email(msg, receivers)
+                self.try_send_email(msg, receivers)
             except Exception as e:
                 self.error(f"Failed to send email to {group_name}: {e}",
                            metadata=metadata)