Update tfl.transpose version inconsistency in register_ref.cc

register.cc already declares support for versions 1-7 of transpose but this seems like it was previously missed for register_ref.

PiperOrigin-RevId: 819915644

Author: majiddadashi

tflite/kernels/register_ref.cc

@@ -343,7 +343,7 @@ BuiltinRefOpResolver::BuiltinRefOpResolver() {
              /* max_version = */ 6);
   AddBuiltin(BuiltinOperator_TRANSPOSE, Register_TRANSPOSE_REF(),
              /* min_version = */ 1,
-             /* max_version = */ 5);
+             /* max_version = */ 7);
   AddBuiltin(BuiltinOperator_MEAN, Register_MEAN_REF(),
              /* min_version = */ 1,
              /* max_version = */ 3);