cql3: avoid ambiguity in a call to update_parameters::make_cell()
cql3: avoid ambiguity in a call to update_parameters::make_cell()

Using initializer lists in calls like foo({}) is ambiguous if foo() has
multiple overloads with more than one accepting a type that is
default-constructible. update_parameters::make_cell() is about to get an
overload that accepts fragmented_temporary_buffer::view as a value, so
let's make sure its call site won't be ambiguous.

scylladb/scylla,avikivity/scylla,duarten/scylla,duarten/scylla,scylladb/scylla,scylladb/scylla,avikivity/scylla,avikivity/scylla,scylladb/scylla,duarten/scylla