Fix field numbers for v1 ListLabelHistoryRequest (#84)

buf/registry/module/v1/label_service.proto

@@ -159,11 +159,11 @@ message ListLabelHistoryRequest {
   // Only return Commits that have one of these CommitCheckStatus values for this label.
   //
   // If not set, Commits with any CommitCheckStatus value are returned.
-  repeated CommitCheckStatus commit_check_statuses = 6 [(buf.validate.field).repeated.items.enum.defined_only = true];
+  repeated CommitCheckStatus commit_check_statuses = 5 [(buf.validate.field).repeated.items.enum.defined_only = true];
   // The Commit id to start from.
   //
   // It is an error to provide a Commit id that doesn't exist on the Label.
-  string start_commit_id = 7 [
+  string start_commit_id = 6 [
     (buf.validate.field).string.uuid = true,
     (buf.validate.field).ignore = IGNORE_IF_UNPOPULATED
   ];