Bug: CI-node label selector not working using app label

[pawan-59]

📜 Description

Previously we were using app labels to define node selectors for CI on the application like selecting ARM-based machine or AMD-based machine to build the code but now this node selector is not working.

👟 Reproduction steps

1. Create an application and configure the build pipeline in the application
2. Now use the below label on app labels. Go to the overview page and add the label.
   Key: devtron.ai/node-selector
   Value: {"purpose": "arm-ci"}
3. Trigger the CI and check the manifest of the CI it won't use the given label.

👍 Expected behavior

It should use the node Selector as mentioned in the labels.

👎 Actual Behavior

It's not using the labels mentioned in the app labels, but using the default selector configured in orchestrator configmap.

☸ Kubernetes version

1.26

Cloud provider

AWS

🌍 Browser

Chrome

🧱 Your Environment

No response

✅ Proposed Solution

No response

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find any similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

AB#6192