fix(operator): Add STS support in Azure secret creation script

[btaani]

What this PR does / why we need it:
Initially, the script hack/deploy-azure-storage-secret.sh only created a secret for azure buckets with static credential mode. This PR adds the option to create for STS use cases, both with manually-provisioned and CCO-managed identity.

Special notes for your reviewer:

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• Title matches the required conventional commits format, see here
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• Changes that require user attention or interaction to upgrade are documented in docs/sources/setup/upgrade/_index.md
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[JoaoBraveCoding]

lgtm, thank you for this!