Updated ASA regex

[kingfetty]

Description

Updated regex for ASA 'show failover' and 'show version' commands.

Motivation and Context

Previous regex did not handle interfaces with names starting with "Ethernet". Previous regex did not handle processor types with '/' in the output.

Impact (If any)

None

Screenshots:

Checklist:

• [x] I have updated the changelog.
• [x] I have updated the documentation (If applicable).
• [x] I have added tests to cover my changes (If applicable).
• [x] All new and existing tests passed.
• [x] All new code passed compilation.

[kingfetty]

any movement here on code review?