Support Azure Blob Storage

[clementsirieix]

Changes

Following Azure storage support, we need to update the file upload method.
Azure require a PUT request, so I'm returning a method field.
Similarly a specific header need to be passed so I'm providing custom headers, in a headers field.

How to test?

• Make sure that the server is running on this branch
• python examples/file-upload.py
• Using the default environment variables should make the file accessible at http://localhost:4566/my-bucket
• Using the azure env should work

[linear]

CHA-612 Attachments should be signed

Description

When fetching an Attachment I should override the url with a signed url based on objectKey.

Let's cache the read signedUrl to make sure to not duplicate stuff.

Definition of Done

• Fetching an Attachment I should override the url property if the objectKey property exist
• Ensure that it works when fetching from other relations (e.g. Step)

[tpatel]

We could use client.request (https://www.python-httpx.org/api/#asyncclient) to avoid storing the function into a variable. Something like client.request(method, url...).

[clementsirieix]

Done