FinOps toolkit JSON deployment error - RequestContentTooLarge

🐛 Problem

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Trying to deploy finops toolkit hub using JSON template which is available at : https://microsoft.github.io/finops-toolkit/hubs#deploy using GitHub Actions and getting below error:

  File "/opt/az/lib/python3.14/site-packages/azure/mgmt/resource/deployments/operations/_deployments_operations.py", line 5816, in _what_if_initial
    raise HttpResponseError(response=response, error_format=ARMErrorFormat)
azure.core.exceptions.HttpResponseError: (RequestContentTooLarge) The request content size exceeds the maximum size of 4 MB.
Code: RequestContentTooLarge
Message: The request content size exceeds the maximum size of 4 MB.

👣 Repro steps

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🤔 Expected

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📷 Screenshots

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🔧 Environment

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• FinOps hub version: (e.g., 0.10, 0.11, 12.0, 13.0)
• Billing account type: EA (Enterprise Agreement) / MCA (Microsoft Customer Agreement) / CSP (Cloud Solution Provider)
• Power BI report type: Storage-based / ADX (Azure Data Explorer)
• Cost Management export: (e.g., FOCUS 1.2-preview, FOCUS 1.0, actual, amortized)

ℹ️ Additional context

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The deployment entry point is the JSON template linked from the FinOps toolkit hubs page; begin by reproducing the hub deployment through GitHub Actions and recording the request size. Trace whether the 4 MB limit is reached by the template or deployment path, then verify the fix or documented workaround by completing the same deployment without RequestContentTooLarge.