Prevent OOM by disabling TransactionPerformanceCollector for now

[adinauer]

📜 Description

Extracted TransactionPerformanceCollector interface and renamed previous TransactionPerformanceCollector to DefaultTransactionPerformanceCollector. Use NoOpTransactionPerformanceCollector as default in SentryOptions

💡 Motivation and Context

Quick fix for #2496 disabling TransactionPerformanceCollector by replacing it with a NoOp variant.

💚 How did you test it?

• run spring boot sample
• wrk -t2 -c100 -d30s http://user:password@localhost:8080/person/9
• visualvm heapdump analysis

📝 Checklist

• I reviewed the submitted code
• I added tests to verify the changes
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled
• I updated the docs if needed
• No breaking changes

🔮 Next steps

• figure out why performanceDataMap isn't cleaned up and keeps growing, then re-enable DefaultTransactionPerformanceCollector

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	354.38 ms	385.70 ms	31.32 ms
Size	1.73 MiB	2.33 MiB	620.49 KiB

Previous results on branch: fix/quickfix-oom-transaction-performance-collector

Startup times

Revision	Plain	With Sentry	Diff
5fcf409	306.80 ms	357.96 ms	51.16 ms
239f3a1	344.41 ms	386.34 ms	41.93 ms
39da621	339.21 ms	384.84 ms	45.63 ms

App size

Revision	Plain	With Sentry	Diff
5fcf409	1.73 MiB	2.33 MiB	620.49 KiB
239f3a1	1.73 MiB	2.33 MiB	620.49 KiB
39da621	1.73 MiB	2.33 MiB	620.49 KiB

[codecov]

Codecov Report

Base: 80.13% // Head: 80.12% // Decreases project coverage by -0.01% ⚠️

Coverage data is based on head (93a5699) compared to base (fb1c50c).
Patch coverage: 90.90% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2498      +/-   ##
============================================
- Coverage     80.13%   80.12%   -0.01%     
- Complexity     3917     3920       +3     
============================================
  Files           321      322       +1     
  Lines         14788    14793       +5     
  Branches       1951     1951              
============================================
+ Hits          11850    11853       +3     
- Misses         2170     2171       +1     
- Partials        768      769       +1     

Impacted Files	Coverage Δ
...sentry/DefaultTransactionPerformanceCollector.java	90.00% <90.00%> (ø)
...io/sentry/NoOpTransactionPerformanceCollector.java	100.00% <100.00%> (ø)
sentry/src/main/java/io/sentry/SentryOptions.java	79.37% <100.00%> (+0.04%)	⬆️

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