[RecoveryServices]: add cross region restore support for Bleu Cloud CRR

[prog-rajkamal]

Description

Mandatory Checklist

• Please choose the target release of Azure PowerShell. (⚠️Target release is a different concept from API readiness. Please click below links for details.)

  • Engineering build

• Check this box to confirm: I have read the Submitting Changes section of CONTRIBUTING.md and reviewed the following information:

• SHOULD update ChangeLog.md file(s) appropriately
  • Update src/{{SERVICE}}/{{SERVICE}}/ChangeLog.md.
    • A snippet outlining the change(s) made in the PR should be written under the ## Upcoming Release header in the past tense.
  • Should not change ChangeLog.md if no new release is required, such as fixing test case only.
• SHOULD regenerate markdown help files if there is cmdlet API change. Instruction
• SHOULD have proper test coverage for changes in pull request.
• SHOULD NOT adjust version of module manually in pull request

[azure-client-tools-bot-prd]

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[Copilot]

Pull request overview

This PR adds Cross Region Restore (CRR) support for Bleu Cloud France regions by adding the necessary region pair mappings to the BackupUtils helper class. The change enables backup data to be restored from bleufrancecentral to bleufrancesouth and vice versa, following the existing pattern for paired Azure regions.

Key Changes:

• Added bidirectional region mapping entries for "bleufrancecentral" and "bleufrancesouth" to the regionMap dictionary

[Copilot]

The ChangeLog.md file has not been updated with this change. According to the CONTRIBUTING.md guidelines, you should update src/RecoveryServices/RecoveryServices/ChangeLog.md with an entry under the "## Upcoming Release" section describing the addition of Cross Region Restore support for Bleu Cloud regions (bleufrancecentral and bleufrancesouth). This should follow the pattern of previous region additions, such as the entry for northeastus5 in Version 7.10.0.

[isra-fel]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 3 pipeline(s).

[wyunchi-ms]

Please update the src/RecoveryServices/RecoveryServicesChangeLog.md and leave the changelog just under the Upcoming Release section @prog-rajkamal