grpc/otel/filterx: ignore MutableRepeatedPtrField() declaration warn

The protoc generated codes are using
RepeatedPtrField in the classes.

The recommended GetMutableRepeatedFieldRef()
function returns a MutableRepeatedFieldRef object,
which is incompatible with RepeatedPtrField.

The ideal thing would be if protoc generated such
codes that use MutableRepeatedFieldRef, or we had
a conversion API between the two.

Signed-off-by: Attila Szakacs <[email protected]>

modules/grpc/otel/filterx/object-otel-kvlist.cpp

@@ -31,6 +31,9 @@
 #include <google/protobuf/reflection.h>
 #include <stdexcept>
 
+/* The deprecated MutableRepeatedPtrField() does not have a proper alternative. */
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
 using namespace syslogng::grpc::otel::filterx;
 using opentelemetry::proto::common::v1::KeyValueList;
 using opentelemetry::proto::common::v1::AnyValue;