fix: only update wrappers_fdw_stats table in a read-write transaction

[imor]

What kind of change does this PR introduce?

Bug fix

What is the current behavior?

If a query on a foreign table was done in a read-only transaction, it failed with this error:

ERROR:  cannot execute INSERT in a read-only transaction
CONTEXT:  SQL statement "insert into public.wrappers_fdw_stats as s (fdw_name, create_times) values($1, $2)
         on conflict(fdw_name)
         do update set
            create_times = coalesce(s.create_times, 0) + excluded.create_times,
            updated_at = timezone('utc'::text, now())"

What is the new behavior?

This error occurred because wrappers updated wrappers_fdw_stats table for each query on a foreign table. wrappers will now update the wrappers_fdw_stats table only if the transaction is read-write.

Additional context

N/A

[StanGirard]

@imor issue still occurs on hosted version with latest version of stripe with a fresh new project.

[imor]

@StanGirard we haven't yet rolled out an image which includes the fixed version of wrappers (hope to do so in a couple of days). If it's urgent for you we can bump wrappers version for your project if you can raise a support ticket.