Fix(cv_tag_v3): Long workspace name to avoid conflict

[sugetha24]

Change Summary

The cv_tag_v3 module creates workspaces in CloudVision under which to make the tag changes. Sometimes these workspaces are created with the same name as previously created instances, resulting in error.
The error was observed in CVP with 700+ workspaces.
Previously the WS name used 3 random alpha numberic string(42840 combinations).
The new WS name uses 6 random alpha numberic string + current datetime

Related Issue(s)

Fixes #672

Component(s) name

arista.cvp.cv_tag_v3

Proposed changes

WS name to use 6 random alpha numberic string + current datetime

How to test

molecule converge -s cv_tag_v3

Checklist

User Checklist

• N/A

Repository Checklist

• My code has been rebased from devel before I start
• I have read the CONTRIBUTING document.
• My change requires a change to the documentation and documentation have been updated accordingly. (check the box if not applicable)
• I have updated molecule CI testing accordingly. (check the box if not applicable)

[noredistribution]

lgtm

[chetryan]

LGTM!
Tested on CVP 2022.3.1 with multiple workspaces (700+)

[noredistribution]

+1

[chetryan]

Tested again after the pylint fix and the solution still works as expected.

[noredistribution]

+1

[chetryan]

Updated the format of the datetime string and tested on cloudvision

[noredistribution]

+1 tested again and worked fine!