test added for SslOptions.defaults()

[ggivo]

Note

Low Risk
Test-only changes that validate TLS defaults and expected connection failures; low risk aside from potential CI flakiness due to environment-dependent TLS/hostname behavior.

Overview
Adds new TLS integration tests for RedisClient that exercise SslOptions.defaults() (successful connect, failure on hostname mismatch) and a custom truststore configuration.

Updates the cluster TLS integration test to stop explicitly supplying SSLParameters with HTTPS endpoint identification, relying on SslOptions/client defaults instead.

^{Reviewed by Cursor Bugbot for commit c587922. Bugbot is set up for automated code reviews on this repo. Configure here.}

[jit-ci]

🛡️ Jit Security Scan Results

✅ No security findings were detected in this PR

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^{Security scan by Jit}

[github-actions]

Test Results

  191 files  ±0    191 suites  ±0   11m 45s ⏱️ +12s
9 232 tests +3  9 176 ✅ +3  56 💤 ±0  0 ❌ ±0 
3 472 runs  +3  3 467 ✅ +3   5 💤 ±0  0 ❌ ±0 

Results for commit c587922. ± Comparison against base commit dd8ea11.

♻️ This comment has been updated with latest results.