Migrate the old manifests to legacy-manifests folder

[prudhvigodithi]

Is your feature request related to a problem? Please describe

The exists build repo manifests folder, has all the manifests including from 1.0.0 version, the following are problems encountered

• Some of these manifests uses old JDK version, so the manifest workflow has to be updated and maintained with old and new JDK versions to support all manifests.
• Whenever a new PR is created to update a existing release manifest file, the manifest checks are executed against all the existing manifests which is time consuming and few checks for old manifests does not add any advantage as they have already reached EOL.
  Example : Add remaining components #2331

Describe the solution you'd like

Migrate the EOL version manifests to a new folder legacy-manifests in build repo and leave the other actively supported version manifests in existing manifests folder.

Describe alternatives you've considered

N/A

Additional context

N/A