Use persistent browser session in runnables (#1510)

Co-authored-by: Shuchang Zheng <wintonzheng0325@gmail.com>
Co-authored-by: Shuchang Zheng <shu@skyvern.com>

skyvern/forge/sdk/schemas/tasks.py

@@ -155,6 +155,7 @@ class TaskRequest(TaskBase):
         examples=["https://my-webhook.com"],
     )
     totp_verification_url: str | None = None
+    browser_session_id: str | None = None
 
     @field_validator("url", "webhook_callback_url", "totp_verification_url")
     @classmethod