ci(php): run TLS tests in CI

[WaterWhisperer]

Which issue does this PR address?

Closes #3308

Rationale

PHP SDK TLS tests were not exercised because CI only started a plain TCP server and did not set the TLS test environment variables.

What changed?

The test task now stops the plain server, starts Iggy with TCP TLS enabled and project certificates, and runs tests/TlsTest.php with the TLS connection environment configured.

Local Execution

• Passed
• Pre-commit hooks ran
• Docker PHP 8.3.31 dynamic verification with the full plain PHP SDK suite and TLS tests

AI Usage

1. Tools: Codex.
2. Scope of usage: inspect the existing PHP SDK TLS tests, adjust the test assertions
3. Verification: ran PHP 8.3 Docker dynamic tests
4. Yes

[github-actions]

Thanks for the PR. It is labeled S-waiting-on-review and queued for review.

Slash commands (own line, regular comment) move it around the queue:

• /ready - back to S-waiting-on-review after addressing feedback
• /request-review @user-or-team - request a reviewer

See CONTRIBUTING.md for details.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.62%. Comparing base (a8dd3a9) to head (c56b0e0).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3381      +/-   ##
============================================
- Coverage     74.65%   74.62%   -0.03%     
  Complexity      943      943              
============================================
  Files          1228     1228              
  Lines        120529   120529              
  Branches      97263    97294      +31     
============================================
- Hits          89975    89948      -27     
+ Misses        27614    27606       -8     
- Partials       2940     2975      +35     

Components	Coverage Δ
Rust Core	75.84% <ø> (-0.01%)	⬇️
Java SDK	58.44% <ø> (ø)
C# SDK	69.41% <ø> (-0.45%)	⬇️
Python SDK	81.06% <ø> (ø)
Node SDK	91.53% <ø> (ø)
Go SDK	40.20% <ø> (ø)
see 26 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[hubcio]

@countradooku mind checking this?

[countradooku]

@countradooku mind checking this?

I will

[countradooku]

Looks good