feat: update protobufs

backport of ad5a889#diff-24f7df358ec675481eb43e8ae0bd3bf961a6d70940e0f86b8c947889dd1885df

Author: akiver

pkg/demoinfocs/events/events.go

@@ -606,8 +606,12 @@ const (
 	WarnTypeMissingItemDefinitionIndex
 	WarnTypeStringTableParsingFailure // Should happen only with CS2 POV demos
 	WarnTypePacketEntitiesPanic
+	WarnTypeUnknownProtobufMessage
 )
 
+// WarnTypeUnknownDemoCommandMessageType occurs when a demo-command message type is unknown - contact a maintainer.
+const WarnTypeUnknownDemoCommandMessageType = WarnUnknownDemoCommandMessageType
+
 // ParserWarn signals that a non-fatal problem occurred during parsing.
 type ParserWarn struct {
 	Message string