Set Content-Length explicitly for http request to pumpx API (#3430)

* http request requires an empty body.

* to be more precise.

Author: BillyWooo

tee-worker/omni-executor/pumpx/src/pumpx_api/mod.rs

@@ -111,6 +111,7 @@ impl PumpxApi {
 		let response = self
 			.http_client
 			.post(endpoint)
+			.header("Content-Length", 0)
 			.header("X-Language", language.unwrap_or("en".to_string()))
 			.bearer_auth(access_token)
 			.send()