Connections add on SQL Server does not test the connection before adding it #1844

$ data-validation connections add  -c sql_server_bad MSSQL --host=a.b.c.d --user=dvtuser --password=AAAAA --database=not-a-db
10/01/2026 10:29:46 AM-INFO: Success! Config output written to /home/me/.config/google-pso-data-validator/sql_server_bad.connection.json

$ data-validation connections add  -c pg_bad Postgres --host=a.b.c.d --user=dvtuser --password=AAAAA --database=not-a-db
Traceback (most recent call last):
...
    raise exceptions.DataClientConnectionFailure(msg)
data_validation.exceptions.DataClientConnectionFailure: Connection Type "Postgres" could not connect: (psycopg2.OperationalError) could not translate host name "a.b.c.d" to address: Name or service not known