[CI] Bump Xcode to 26.2

[testableapple]

🔗 Issue Links

Resolve https://linear.app/stream/issue/IOS-1381/

Test

• Cron checks passed

Summary by CodeRabbit

• Chores
  • Updated build and testing infrastructure to use Xcode 26.2 and iOS simulator version 26.2 for improved compatibility and reliability across development and testing workflows.

[coderabbitai]

📝 Walkthrough

Walkthrough

CI workflows and Fastlane configuration updated to use Xcode version 26.2 and iOS simulator version 26.2, replacing previous 26.1/26.1.1 references across cron checks, smoke checks, and build tool settings.

Changes

Cohort / File(s)	Summary
CI Workflow Configurations .github/workflows/cron-checks.yml, .github/workflows/smoke-checks.yml	Updated iOS and Xcode versions from 26.1/26.1.1 to 26.2 in CI matrix entries, environment variables, and simulator device specifications.
Build Tool Configuration fastlane/Fastfile	Updated default Xcode version fallback from 26.1.1 to 26.2.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 Hop, hop—version twenty-six point two has arrived,
Xcode leaps forward, our pipelines thrive!
Simulators spin up with fresh iOS delight,
CI workflows dance into the night. ✨

🚥 Pre-merge checks | ✅ 6

✅ Passed checks (6 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title '[CI] Bump Xcode to 26.2' clearly and concisely describes the main change: updating Xcode version to 26.2 in CI configuration.
Linked Issues check	✅ Passed	The PR successfully implements the requirement from IOS-1381 to update CI environment to Xcode 26.2 across all relevant workflow files and Fastfile.
Out of Scope Changes check	✅ Passed	All changes are focused exclusively on updating Xcode version references from 26.1/26.1.1 to 26.2 across CI workflows and Fastfile, with no unrelated modifications.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into develop
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch ci/xcode-26.2

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[Stream-SDK-Bot]

SDK Size

title	develop	branch	diff	status
StreamFeeds	7.26 MB	7.26 MB	0 KB	🟢

[Stream-SDK-Bot]

StreamFeeds XCSize

Object	Diff (bytes)
StreamAttachments.o	-128
FeedsClient.o	-48

[github-actions]

Public Interface

🚀 No changes affecting the public interface.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud