url: Keep the query when a broker URL is sanitized

[SashaMIT]

Summary

• sanitize_url("http://u:p@e.com/foo?a=1") returned http://u:**@e.com/foo. as_url accepted the parsed query and then left it out, so masking the password also dropped every parameter.
• The query is written back out. http://u:p@e.com//foo still masks the password and still has no query. amqp://user:pass@localhost:5672/my/vhost is unchanged.

Test plan

• On tip, test_sanitize_url_keeps_query failed: http://u:**@e.com/foo against http://u:**@e.com/foo?a=1.
• After the fix, pytest t/unit/utils/test_url.py passed (20).

[auvipy]

any relevant issue you are fixing with this?

[SashaMIT]

There is no filed issue. sanitize_url of http://u:p@e.com/foo?a=1 came back as http://u:**@e.com/foo. Masking the password dropped the query. The query is written back out. A URL with no query is unchanged.