Update cpp/ql/lib/change-notes/2026-08-27-protobuf-models.md

Co-authored-by: Jeroen Ketema <93738568+jketema@users.noreply.github.com>

Author: kumarak

cpp/ql/lib/change-notes/2026-08-27-protobuf-models.md

@@ -1,4 +1,4 @@
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 category: minorAnalysis
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-* Added flow summaries for the Protocol Buffers C++ API (`google::protobuf::MessageLite`, covering `Message` and all generated messages). The `ParseFrom*`/`MergeFrom*` methods (string, array, Cord, istream, and zero-copy/coded-stream forms) propagate taint from the encoded input to the message, and the `SerializeTo*`/`SerializeAs*`/`AppendTo*` methods propagate taint from the message to the output buffer, stream, or return value.
+* Added flow summaries for the Protocol Buffers C++ API (`google::protobuf::MessageLite`, covering `Message` and all generated messages).