refactor: implement key package upload endpoint in WireNetwork - WPB-23048

[johnxnguyen]

WPB-23048 [iOS] Implement POST /mls/key-packages/self/{id}

Issue

Implement key package upload endpoint in WireNetwork.

Testing

Code not live yet.

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Checklist

• Title contains a reference JIRA issue number like [WPB-XXX].
• Description is filled and free of optional paragraphs.
• Adds/updates automated tests.

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UI accessibility checklist

If your PR includes UI changes, please utilize this checklist:

• Make sure you use the API for UI elements that support large fonts.
• All colors are taken from WireDesign.ColorTheme or constructed using WireDesign.BaseColorPalette.
• New UI elements have Accessibility strings for VoiceOver.

[github-actions]

Test Results

354 tests   354 ✅  7s ⏱️
 35 suites    0 💤
  1 files      0 ❌

Results for commit bcdb1d7.

[netbe]

left a todo, the rest looks good

[netbe]

todo: missing the message from failure response:

{
  "code": 400,
  "label": "mls-protocol-error",
  "message": "MLS protocol error"
}

you could do try catch:

do {
 try ResponseParser()....
} catch {
            if let failureResponse = error as? FailureResponseV0, where failureResponse.label == "mls-protocol-error" {
                throw MLSAPIError.mlsProtocolError(message: failureResponse.message)
            } else {
                throw error
            }
        }

[samwyndham]

Agree that we should aim not to lose the underlying message.