Run CI with Xcode 26.1 RC (#4672)

* Use Xcode 26.1 RC on CI

* regenerated previews with 26.1

* ui tests

* fix

* fix some iPad tests rendering

* remove useless fastlane line

---------

Co-authored-by: Doug <douglase@element.io>

ci_scripts/ci_common.sh

@@ -59,7 +59,7 @@ setup_github_actions_translations_environment() {
 xcode_select_for_github_actions() {
     # While fastlane has its own way of selecting Xcode, that only works inside of fastlane.
     # We need to select it globally for other processes like xcresultparser and our custom tools to use the same Xcode version.
-    sudo xcode-select -s /Applications/Xcode_26.0.app
+    sudo xcode-select -s /Applications/Xcode_26.1_Release_Candidate.app
 }
 
 generate_what_to_test_notes() {
@@ -95,4 +95,4 @@ generate_what_to_test_notes() {
 fetch_unshallow_repository() {
     # Xcode Cloud shallow clones the repo. We need to deepen it to fetch tags, commit history and be able to rebase main on develop at the end of releases.
     git fetch --unshallow --quiet
-}
+}