Adds process_tags to live debugger payloads

[dubloom]

This PR implements this RFC for dynamic instrumentation.

Add process_tags to dynamic instrumentation payload.

This PR comes with this libdatadog PR: DataDog/libdatadog#1452 which justifies the temporary bump of libdatadog (to show that it works)

[datadog-official]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

🧪 1026 Tests failed

    testSearchPhpBinaries from integration.DDTrace\Tests\Integration\PHPInstallerTest (Fix with Cursor)

    testSimplePushAndProcess from laravel-58-test.DDTrace\Tests\Integrations\Laravel\V5_8\QueueTest (Fix with Cursor)

testSimplePushAndProcess from laravel-8x-test.DDTrace\Tests\Integrations\Laravel\V8_x\QueueTest (Datadog) (Fix with Cursor)

DDTrace\Tests\Integrations\Laravel\V8_x\QueueTest::testSimplePushAndProcess
Test code or tested code printed unexpected output: spanLinksTraceId: 696e2293000000005a2fe47f40a3c72d
tid: 696e229300000000
hexProcessTraceId: 5a2fe47f40a3c72d
hexProcessSpanId: a983af724ffbd4e4
processTraceId: 6498664022515369773
processSpanId: 12214799519861953764

phpvfscomposer://tests/vendor/phpunit/phpunit/phpunit:106

View all

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 6017272 | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2026-01-19 13:14:38

Comparing candidate commit 6017272 in PR branch dubloom/process-tags-di with baseline commit 434d817 in branch master.

Found 1 performance improvements and 1 performance regressions! Performance is the same for 191 metrics, 1 unstable metrics.

scenario:BM_TeaSapiSpindown

• 🟥 execution_time [+11.726µs; +32.081µs] or [+2.248%; +6.152%]

scenario:TraceSerializationBench/benchSerializeTrace-opcache

• 🟩 execution_time [-15.234µs; -8.966µs] or [-4.407%; -2.594%]

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.92%. Comparing base (434d817) to head (6017272).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3580   +/-   ##
=======================================
  Coverage   61.92%   61.92%           
=======================================
  Files         140      140           
  Lines       13309    13309           
  Branches     1762     1762           
=======================================
  Hits         8241     8241           
  Misses       4278     4278           
  Partials      790      790           

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