Feature: Fallback gitops credentials to prevent 429 Too many requests

[prakarsh-dt]

🔖 Feature description

Support usage of fallback Gitops credentials to prevent 429 Too many requests error.

🎤 Pitch / Usecases

Most providers like Bitbucket, Github, Gitlab, AWS Code commit have a per user rate limit on the api interaction and thus sometimes it becomes a blocker when a rate-limit is hit. To prevent this, there should be some fallback gitops credentials available with Devtron so that it can continue using this credential after a rate-limit is hit.

🔄️ Alternative

Users have to wait for few minutes/hours until the rate-limit is replenished.

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

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

AB#10114