chore(deps): update Cocoa SDK to v9.15.0

[github-actions]

Bumps modules/sentry-cocoa from 9.14.0 to 9.15.0.

Auto-generated by a dependency updater.

Changelog

9.15.0

Features

• Add SentrySDK.extendAppLaunch() and SentrySDK.finishExtendedAppLaunch() to extend standalone app start spans beyond the default end point (e.g. include initial data loading). Call extendAppLaunch() after SentrySDK.start(options:) and before the app start transaction is created, then call finishExtendedAppLaunch() when your app is fully ready. Requires options.experimental.enableStandaloneAppStartTracing = true. (#7936)
• Skip max app start duration limit for standalone app start tracing (#7949)

Fixes

• Fix UIViewController transactions lost during launch profiling (#7920)

[sentry]

Bug: The sentry-cocoa submodule update is not synchronized with the modules/sentry-cocoa.properties file, potentially causing release builds to use an outdated binary.
_{Severity: MEDIUM}

Suggested Fix

The dependency update workflow should be modified to automatically generate or update the modules/sentry-cocoa.properties file with the correct version whenever the sentry-cocoa submodule is updated. This will ensure that builds relying on the properties file download the correct binary version, synchronizing it with the submodule pointer.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent. Verify if this is a real issue. If it is, propose a fix; if not, explain why it's
not valid.

Location: modules/sentry-cocoa#L1

Potential issue: The dependency update process for `sentry-cocoa` only updates the git
submodule pointer but does not update the corresponding
`modules/sentry-cocoa.properties` file. This properties file is used by some build
configurations to download a pre-built binary. Because the file is not updated, these
builds may download and use an outdated version of the `sentry-cocoa` library, leading
to a version mismatch between the source code and the compiled binary. While the current
CI configuration may build from the submodule source, masking this issue, other build
environments or local development setups could fail or use the wrong dependency version.

_{Did we get this right? 👍 / 👎 to inform future reviews.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.10%. Comparing base (8ddab0e) to head (687ed87).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5264   +/-   ##
=======================================
  Coverage   74.09%   74.10%           
=======================================
  Files         508      508           
  Lines       18320    18320           
  Branches     3584     3584           
=======================================
+ Hits        13575    13576    +1     
+ Misses       3872     3866    -6     
- Partials      873      878    +5     

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