chore: bump version of the testagent used in tests

[mabdinur]

What does this PR do?

Bumps the version of the testagent used to run tests

Motivation:

Test agent v1.37.0 introduces new apis for capturing otlp metrics and logs

Change log entry

n/a: This change only impacts testing

How to test the change?

n/a

[github-actions]

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**Change log entry**

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**Change log entry**

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^{Visited at: 2025-11-06 23:14:31 UTC}

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-11-06 23:42:45

Comparing candidate commit 21c3e2d in PR branch munir/bump-testagent with baseline commit 20f7cba in branch master.

Found 1 performance improvements and 0 performance regressions! Performance is the same for 43 metrics, 2 unstable metrics.

scenario:profiling - gvl benchmark samples

• 🟩 throughput [+794.234op/s; +805.300op/s] or [+6.475%; +6.566%]

[datadog-official]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

🎯 Code Coverage
• Patch Coverage: 100.00%
• Total Coverage: 98.53% (-0.03%)

View detailed report

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