feat: github workflow for releases

[rajat2502]

Proposed changes

Created two new actions:

1. Create Feature Release: for feature branches, it is triggered manually.
2. Production Release: for production releases, is automatically triggered on pushes to release/* branches. Always creates a signed release.

Updated the current release workflow to be called as a job from the Feature/Production releases workflow, it takes tag as input from the feature/production workflows.

Spec doc

Types of changes

What types of changes does your code introduce?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

[rajat2502]

TODO:

Restrict tags that match v*.*.*-rc* and v*.*.* 
Allow only: 
- github-actions[bot] 
- Admins / selected teams 

[rajat2502]

Feature release tested here
Production release tested here

[rajat2502]

Since it is not a feature, keeping the base as main so we would be able to run it for subsequent feature/production releases.