Enable Cop/LineBreakAroundConditionalBlock cop for HAML

What does this MR do?

Enables Cop/LineBreakAroundConditionalBlock cop for HAML in HAML-lint.

Part of #23855

Screenshots (strongly suggested)

n/a

Does this MR meet the acceptance criteria?

Conformity

• 📋 Does this MR need a changelog?
  • I have not included a changelog entry because ~"technical debt" in static code analysis in test.
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