fix: add audio asset metadata (WPB-3334)

[alexandreferris]

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PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

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What's new in this PR?

ssues
When sending audio messages from Android it wouldn't render the audio length in Android and also other platforms

Causes (Optional)
We were not sending audio metadata.

Solutions
Add and map audio metadata correctly when sending the asset.

Dependencies (Optional)

Needs releases with:

• Kalium PR #1969

Testing

Test Coverage (Optional)

• I have added automated test to this contribution

How to Test

• Open App
• Open Conversation
• Send Audio message and check:
  • Audio contains length before sending
  • Audio contains length on messages list
  • Audio contains length (check from other platforms Web/iOS)

[AndroidBob]

Build 969 failed.

[AndroidBob]

Build 970 succeeded.

The build produced the following APK's:

• com.wire.android-v4.3.0(7260602)(7260602)-staging-compat.apk

[github-actions]

APKs built during tests are available here. Scroll down to Artifacts!