VCR: fix MS SQL Server status list refresh

[reinkrul]

Fixes:

{"detail":"mssql: Invalid column name 'subject_id'.","status":500,"title":"StatusList failed"}

Caused by:

SELECT * FROM status_list_entry WITH (UPDLOCK, ROWLOCK) WHERE subject_id =

Also fixes a count(*) > 0 leftover, which isn't supported by all databases (at least not by MS SQL Server).

There isn't really a good way to test this, since it only triggers when the StatusList credential expires (after 24h).