Fix Cisco Nexus version detection

[trickyearlobe]

The format of the output from show version has changed in Cisco NXOS 9.3
and requires a different regex to match it.

Tested on 9.3(10) virtual Nexus 9300

Signed-off-by: Richard Nixon richard.nixon@btinternet

Description

Added a new regex to extract the version number for Cisco Nexus switches

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New content (non-breaking change)
• Breaking change (a content change which would break existing functionality or processes)

Checklist:

• I have read the CONTRIBUTING document.

[chef-expeditor]

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