Revert "chore: update scripts/update-cocoa.sh to 8.28.0 (#3866)"

This reverts commit 0601fb8.

Author: krystofwoldrich

CHANGELOG.md

@@ -10,12 +10,6 @@
 - Add Span IDs to Time to Display debug logs ([#3868](https://github.com/getsentry/sentry-react-native/pull/3868))
 - Use TTID end timestamp when TTFD should be updated with an earlier timestamp ([#3869](https://github.com/getsentry/sentry-react-native/pull/3869))
 
-### Dependencies
-
-- Bump Cocoa SDK from v8.27.0 to v8.28.0 ([#3866](https://github.com/getsentry/sentry-react-native/pull/3866))
-  - [changelog](https://github.com/getsentry/sentry-cocoa/blob/main/CHANGELOG.md#8280)
-  - [diff](https://github.com/getsentry/sentry-cocoa/compare/8.27.0...8.28.0)
-
 ## 5.23.0
 
 ### Features

RNSentry.podspec

@@ -33,7 +33,7 @@ Pod::Spec.new do |s|
   s.preserve_paths = '*.js'
 
   s.dependency 'React-Core'
-  s.dependency 'Sentry/HybridSDK', '8.28.0'
+  s.dependency 'Sentry/HybridSDK', '8.27.0'
 
   s.source_files = 'ios/**/*.{h,m,mm}'
   s.public_header_files = 'ios/RNSentry.h'