Long Test Execution Times in entity.py save() Method

[vtsvetkov-splunk]

We are experiencing significant delays in test execution times. The bottleneck has been identified in the save() method within entity.py.

The method currently takes ~60 seconds to complete, which is significantly longer than necessary.

The method waits sequentially for the following operations:

• get_error() method: ~20 seconds
• get_warning() method: ~20 seconds
• wait_loading() method: ~20 seconds

In most cases, there are no error messages and the save operation is successful. However, the method still waits for the full 60 seconds to complete.

For timing details of each operation, please refer to this draft PR: https://github.com/splunk/addon-factory-smartx-ui-test-library/actions/runs/12993537981?pr=444