Fix flaky CallService_OtlpHttpEndPoint_BigData_Success with increased timeout

[JamesNK]

Description

CallService_OtlpHttpEndPoint_BigData_Success sends a lot of logs. Most of the time this test finishes in 3-5 seconds. However it can spike up to 10, 20 or 30 seconds. I'm guessing spikes are caused by build server load. The test fails with a timeout at 30 seconds (2% of the time).

This change increases the test timeout from 30 seconds to 120 seconds.

Checklist

• Is this feature complete?
  • Yes. Ready to ship.
  • No. Follow-up changes expected.
• Are you including unit tests for the changes and scenario tests if relevant?
  • Yes
  • No
• Did you add public API?
  • Yes
    • If yes, did you have an API Review for it?
      • Yes
      • No
    • Did you add <remarks /> and <code /> elements on your triple slash comments?
      • Yes
      • No
  • No
• Does the change make any security assumptions or guarantees?
  • Yes
    • If yes, have you done a threat model and had a security review?
      • Yes
      • No
  • No
• Does the change require an update in our Aspire docs?
  • Yes
    • Is this introducing a breaking change?
      • Yes
        • Link to aspire-docs issue (please use this breaking-change template):
      • No
        • Link to aspire-docs issue (please use this doc-idea template):
  • No

Microsoft Reviewers: Open in CodeFlow

[JamesNK]

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