Update the implementation for sent_query_count

The nsd metrics implementation needs to be updated to support
the new field sent_query_count on NetworkNsdReported.

Bug: 287546772
Test: m
Merged-In: Ie1d8d5f2cce4f6040dcfb980db6ab11dfe01fb72
Change-Id: Ie1d8d5f2cce4f6040dcfb980db6ab11dfe01fb72