Merge branch '2.x' into 3.x

Author: cowtowncoder

release-notes/VERSION-2.x

@@ -129,6 +129,7 @@ No changes since 2.19.1
   when creating parser with fixed buffer
 #651: (smile) Ensure Smile backend supports `StreamReadConstraints.maxTokenCount`
 #652: (cbor) Ensure CBOR backend supports `StreamReadConstraints.maxTokenCount`
+- Minor fix to `ProtobufGenerator._reportEnumError()` helper method
 
 2.18.5 (27-Oct-2025)