fix migration

Author: nikhilsinhaparseable

src/event/format/mod.rs

@@ -113,7 +113,7 @@ impl LogSourceEntry {
 
     pub fn to_value(&self) -> Value {
         json!([{
-            "log_source_format": self.log_source_format.to_string(),
+            "log_source_format": self.log_source_format,
             "fields": self.fields,
         }])
     }

src/handlers/http/ingest.rs

@@ -72,7 +72,7 @@ pub async fn ingest(req: HttpRequest, Json(json): Json<Value>) -> Result<HttpRes
         return Err(PostError::OtelNotSupported);
     }
 
-    let log_source_entry = LogSourceEntry::new(&log_source, HashSet::from(["hello".to_string()]));
+    let log_source_entry = LogSourceEntry::new(&log_source, HashSet::new());
     PARSEABLE
         .create_stream_if_not_exists(
             &stream_name,