Sender should deduplicate alerts

[wk9874]

Description of Bug

In offline mode, if you define multiple of the same alert, these are sent to the server first, and you get back the same online ID for all identical offline IDs. If you then send the run, itll swap all offline IDs for the same online ID, which means you have a list of the same IDs. The server then throws a 'duplicate run IDs' error, and the run doesnt get created

Steps To Reproduce

Code to reproduce the behavior:

from simvue import Run
import simvue.sender as sender
if __name__ == "__main__":         
    with Run(mode='offline') as run:
        run.init()
        for i in range(5):
            _ta_id = run.create_metric_threshold_alert(
                name='test_alert',
                frequency=1,
                rule='is below',
                threshold=1,
                metric='metric_counter',
                window=2
            )
            
    sender.sender()

Expected behavior

Alerts should be deduplicated, run should be created with one alert

Actual Behaviour

Run isnt created and throws back an error

Screenshots

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Setup

• OS: Ubuntu
• Python version: 3.10

Additional context

Add any other context about the problem here.