fix: CA root should not be required

[morrisonlevi]

Description

In a recent libdatadog change, we unintentionally required that a CA root store be found even for non-HTTPS connections to the agent e.g. http:// and unix:// endpoints.

This PR points to a libdatadog branch which has a fix which requires it only when the endpoint is https://.

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[datadog-datadog-prod-us1-2]

⚠️ Tests

✨ Fix all issues with BitsAI or with Cursor

⚠️ Warnings

🧪 1056 Tests failed

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

Risky Test
phpvfscomposer://tests/vendor/phpunit/phpunit/phpunit:97

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

DDTrace\Tests\Integrations\Laravel\V5_8\QueueTest::testSimplePushAndProcess
Test code or tested code printed unexpected output: spanLinksTraceId: 69c533db00000000ded94ca18bd95145
tid: 69c533db00000000
hexProcessTraceId: ded94ca18bd95145
hexProcessSpanId: 4daad7e0406203f3
processTraceId: 16057950203085934917
processSpanId: 5596522845114074099

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

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

DDTrace\Tests\Integrations\Laravel\V8_x\QueueTest::testSimplePushAndProcess
Test code or tested code printed unexpected output: spanLinksTraceId: 69c5347d000000004825bcf96473aeb1
tid: 69c5347d00000000
hexProcessTraceId: 4825bcf96473aeb1
hexProcessSpanId: 11dcf4823c6575d7
processTraceId: 5198769124187287217
processSpanId: 1287172433717327319

View all

ℹ️ Info

No other issues found (see more)

❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 60.68% (-0.00%)

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: d6116d9 | Docs | Datadog PR Page | Was this helpful? React with 👍/👎 or give us feedback!}

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.84%. Comparing base (0bdca89) to head (d6116d9).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3734      +/-   ##
==========================================
- Coverage   68.85%   68.84%   -0.01%     
==========================================
  Files         166      166              
  Lines       19015    19015              
  Branches     1792     1792              
==========================================
- Hits        13092    13091       -1     
- Misses       5112     5114       +2     
+ Partials      811      810       -1     

Flag	Coverage Δ
helper-rust-integration	78.82% <ø> (+0.02%)	⬆️
helper-rust-unit	49.36% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.
see 3 files with indirect coverage changes

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[pr-commenter]

Benchmarks [ profiler ]

Benchmark execution time: 2026-03-26 13:33:57

Comparing candidate commit d6116d9 in PR branch levi/fix_certificate_issue with baseline commit 0bdca89 in branch master.

Found 3 performance improvements and 1 performance regressions! Performance is the same for 25 metrics, 7 unstable metrics.

scenario:php-profiler-timeline-memory-with-profiler-and-timeline

• 🟩 cpu_usage_percentage [-7.851%; -6.917%]
• 🟩 cpu_user_time [-270.144ms; -202.322ms] or [-17.311%; -12.965%]
• 🟩 execution_time [-105.048ms; -80.920ms] or [-7.872%; -6.064%]

scenario:walk_stack/1

• 🟥 wall_time [+298.658ns; +302.210ns] or [+2.401%; +2.430%]