Use LRS replication for bosh storage account

[stephanme]

LRS (Locally redundant storage) is cheaper than GRS (geo-redundant storage).

We observed nearly $500 cost per month for "Geo-Replication v2 Data Transfer".

GRS is not necessary for bbl envs used in CF validation (the dominate use case of bbl I would say). Replication type can be overridden if bbl is used for setting up a productive foundation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 4969aace-7934-46ff-8863-de059b8eef03

📥 Commits

Reviewing files that changed from the base of the PR and between 489cb2b and c3c6727.

📒 Files selected for processing (1)

• terraform/azure/templates/storage.tf

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Walkthrough

The PR updates the Azure storage account configuration for BOSH by changing the replication strategy from Geo-Redundant Storage (GRS) to Locally Redundant Storage (LRS). This single-line change modifies the account_replication_type attribute in the azurerm_storage_account.bosh Terraform resource definition.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title directly describes the main change: switching BOSH storage replication from GRS to LRS, which aligns with the file modification in storage.tf.
Description check	✅ Passed	The description clearly relates to the changeset by explaining the cost rationale and use case for changing from GRS to LRS replication.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch stephanme-patch-1

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