[BUG]: AzureIoTEdgeV2 Partial deployment broken

[eanavalentin]

New issue checklist

• [X] I searched for existing GitHub issues
• [X] I read pipeline troubleshooting guide
• [X] I checked how to collect logs

Task name

AzureIoTEdge

Task version

2.*

Issue Description

The Deploy to IoT Edge action does not support partial deployments.

Partial deployments must have content already inside - see this iotedgedev issue

Instead of checking if the deployment file already contains a content section, it tryes to add this to all and any deployment files, which then causes the az iot edge deployment create to fail, as the structure of the deployment file is no longer correct.

Link to relevant portion of the code

Environment type (Please select at least one enviroment where you face this issue)

• [ ] Self-Hosted
• [X] Microsoft Hosted
• [ ] VMSS Pool
• [ ] Container

Azure DevOps Server type

dev.azure.com (formerly visualstudio.com)

Azure DevOps Server Version (if applicable)

No response

Operation system

windows, ubuntu

Relevant log output

2024-02-02T09:50:47.6794225Z [command]/usr/bin/az "iot" "edge" "deployment" "create" "--deployment-id" "REDACTED" "--hub-name" "REDACTED" "--content" "/tmp/deployment_1706867440230.json" "--target-condition" "REDACTED" "--priority" "0" "--output" "none"
2024-02-02T09:50:49.0739850Z ERROR: Edge deployment payloads require property: modulesContent

Full task logs with system.debug enabled

 [2024-02-02T09:50:47.6794225Z [command]/usr/bin/az "iot" "edge" "deployment" "create" "--deployment-id" "REDACTED" "--hub-name" "REDACTED" "--content" "/tmp/deployment_1706867440230.json" "--target-condition" "REDACTED" "--priority" "0" "--output" "none"
2024-02-02T09:50:49.0739850Z ERROR: Edge deployment payloads require property: modulesContent] 

Repro steps

No response

[eanavalentin]

Any update on this?