AzureHttpFunction: content-type application/octet-stream is not supported

[pdaterao]

Steps to Reproduce

1. Setup a micronaut AzureHttpFunction to route incoming requests to controllers
2. annotate azure function with dataType=binary and send post with header Content-Type: application/octet-stream

Expected Behaviour

Incoming azure http trigger with marked as dataType=binary and content-type: application/octet-stream should be passed on to a controller accepting byte[] as @Body

Actual Behaviour

Failed because micronaut is trying to decode binary data as JSON.

Environment Information

• Operating System: MacOS 10.15.5
• **Micronaut Version: 2.4.2
• JDK Version: OpenJDK 1.8