To update the Approch of Workflow Validation

[Deepika516]

Describe the bug
Implement the input validation in node classes ..

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Add any other context about the problem here.

[yeshamavani]

The fix in above PR was a quick fix
this needs to be solved via the respective node classes