Update index_prisma.py

[carreirorco]

Prisma sends alertId: "T-0" to SQS, so you need to change "P-0" to "T-0" for it to work.

Description

When Prisma validates the integration with AWS SQS, the alertId parameter is sent with the value "T-0" instead of "P-0" as it is in the test validation.

Motivation and Context

Example of the error that was occurring:

Error in SQS record. Raw message: {'messageId': 'XXX', 'receiptHandle': 'XXX', 'body': '{
        "sender": "Prisma Cloud Test Notification",
        "sentTs": XXX,
        "alertId": "T-0",
        "message":"This is a test message from Prisma Cloud initiated by \'XXX\' to validate integration \'XXX\'."
    }...

'resourceRegionId': Exception
Traceback (most recent call last):
  File "/var/task/index_prisma.py", line 156, in lambda_handler
    raise Exception(parsed_alert['error'])
Exception: 'resourceRegionId'

How Has This Been Tested?

After the change, just test the integration again and follow the log via AWS Cloudwatch:

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   timestamp   |                                                                               message                                                                                |
|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1686938679085 | INIT_START Runtime Version: python:3.10.v5 Runtime Version ARN: arn:aws:XXX                                                                                          |
| 1686938679439 | START RequestId: XXX           Version: $LATEST                                                                                                                      |
| 1686938679439 | #### Received 1 record(s) ####                                                                                                                                       |
| 1686938679439 | Prisma Cloud Test Notification                                                                                                                                       |
| 1686938679440 | END RequestId: XXX                                                                                                                                                   |
| 1686938679440 | REPORT RequestId: XXX Duration: 1.57 ms Billed Duration: 2 ms Memory Size: 128 MB Max Memory Used: 53 MB Init Duration: 352.81 ms                                    |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist

• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes if appropriate.
• All new and existing tests passed.

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