[component-groups | LogSnippet] - Rename leftBorderVariant

[fhlavac]

Follow up to breaking change PR

We've renamed LogSnippet prop because of design changes and switching from border variant to alert variant

rename
leftBorderVariant to variant

The LogSnippetBorderVariant has been removed and replaced with PF AlertVariant. Perhaps the current values could be mapped to the new ones since the types almost match

Example:

<LogSnippet message='Failure - check logs for details' logSnippet={code} leftBorderVariant={LogSnippetBorderVariant.success} />

becomes

<LogSnippet message='Failure - check logs for details' logSnippet={code} variant={AlertVariant.success} />

or

<LogSnippet message='Failure - check logs for details' logSnippet={code} variant="sucess" />

Required actions:

• Build codemod
• Build test
• Update readme with description & example