Description of problem:

After receiving an invalid value for Parameter Type='yaml', it still accepts the value.

How reproducible:

Always

Is this issue a regression from an earlier version:

No

Steps to Reproduce:

1. Configure -> Ansible -> Variables -> New Ansible Variable

2. Select a random key and choose the Ansible Role that needs to be imported.

3. Select Override and Parameter Type - 'yaml' and Default Value - {a:test}

4. Click on Submit

Actual behavior:
After adding an invalid value, such as a dictionary

, to the YAML, it still works.

Expected behavior:
After adding an invalid value to the YAML file, it should fail to work and throw an error indicating 'is invalid.'

Affects Version/s: stream, 6.16.0 (el9) , it is working for 6.16.0 (el8)