Bug: Ci build fails in app created from api

[kartik-579]

📜 Description

Ci Build fails in app created using app create api due to empty check of build type in backward compatibility handling for buildpack story.

👟 Reproduction steps

1. Create app using app create api.
2. Trigger a ci

👍 Expected behavior

The ci build should work fine.

👎 Actual Behavior

The ci build is failing.

☸ Kubernetes version

1.22

Cloud provider

🌍 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

[kartik-579]

RCA: Payload for Ci build config was not updated in app create api which caused default data (empty for most of the fields) to be saved in database. This caused the build to get failed as there was no data on how to build the image.