Update comment

Author: v-wuzhai

github-merge-flow.jsonc

@@ -16,7 +16,7 @@
             "MergeToBranch": "release/9.0.1xx",
             "ExtraSwitches": "-QuietComments"
         },        
-        // Automate opening PRs to merge sdk repos from release/9.0.1xx to release/9.0.2xx
+        // Automate opening PRs to merge sdk repos from release/9.0.1xx to release/9.0.3xx
         "release/9.0.1xx":{
             "MergeToBranch": "release/9.0.3xx",
             "ExtraSwitches": "-QuietComments"