dependencies: Update recoveryservices to 2021-12-01/backup

[myc2h6o]

• Prepare for https://docs.microsoft.com/en-us/azure/backup/backup-azure-vms-enhanced-policy
• ResourceStorageConfigsClient has been deprecated and replaced with ResourceStorageConfigsNonCRRClient. Have confirmed with service team. Also for these two clients, the generated API request, function parameter and return type are same.

[myc2h6o]

Test result:

[katbyte]

we have 2 failing tests:

we may need to add an additional wait on delete for the first failure, but try merging main first as that check should be turned off on main

[myc2h6o]

Hi @katbyte TestAccBackupProtectedVm_separateResourceGroups is being fixed by #16552 TestAccRecoveryServicesVault_switchEncryptionKeyVaultKey is being fixed by #16545 I'll rerun the test for this change after those two are merged

[katbyte]

Thanks @myc2h6o - LGTM 🌿

[github-actions]

This functionality has been released in v3.5.0 of the Terraform Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

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[github-actions]

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