Makes the Cisco Check more resilient

[gmmeyer]

What does this PR do?

The Cisco Check should try to collect everything, even if some types of failures occur that shouldn't stop it from running.

Network errors and access errors should be ignored, because that could mean that a switch has been cycled out or something. Also sometimes switches can be a part of the APIC without actually being monitored or managed by the apic, and it will fail on some of the collection requests.

Motivation

Found some failures, it shouldn't stop halfway.

Review checklist

• PR has a meaningful title or PR has the no-changelog label attached
• Feature or bugfix has tests
• Git history is clean
• If PR impacts documentation, docs team has been notified or an issue has been opened on the documentation repo

Additional Notes

We might want to add service checks to some of these requests. I am not sure which ones, I'm gonna add them in a followup PR.