xWindowsUpdateAgent should handle 0x80244022

[TravisEz13]

0x80244022 -2145107934 WU_E_PT_HTTP_STATUS_SERVICE_UNAVAIL Same as HTTP status 503 - the service is temporarily overloaded. wuerror.h

[pyrostew]

Following on from this, error 0x80244010 Exceeded max server round trips feels like it could be handled in a similar way to 0x80244022. I would suggest that handling of these errors is by a configurable delay and retry loop, I am happy to attempt an implementation for this.

[TravisEz13]

feel free to include me on a PR

[johlju]

Wrongly closed by a PR.