Update Xcode version to 15.4 (#3142)

Task/Issue URL: https://app.asana.com/0/1203301625297703/1207895930258170/f

Description:
Update .xcode-version to indicate Xcode 15.4 as the officially supported version.

.github/workflows/adhoc.yml

@@ -21,7 +21,7 @@ on:
 
 jobs:
   make-adhoc:
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     name: Make ad-hoc build
 
     steps:

.github/workflows/alpha.yml

@@ -31,7 +31,7 @@ on:
 
 jobs:
   make-alpha:
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     name: Make TestFlight Alpha Build
     timeout-minutes: 30
 

.github/workflows/end-to-end.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   end-to-end-tests:
     name: End to end Tests
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
 
     steps:
     - name: Check out the code

.github/workflows/nightly.yml

@@ -7,7 +7,7 @@ on:
 jobs:
   atb-ui-tests:
     name: ATB UI Tests
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     timeout-minutes: 30
 
     steps:
@@ -68,7 +68,7 @@ jobs:
 
   fingerprinting-ui-tests:
     name: Fingerprinting UI Tests
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     timeout-minutes: 30
 
     steps:

.github/workflows/pr.yml

@@ -39,7 +39,7 @@ jobs:
 
     name: Unit Tests
 
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     timeout-minutes: 15
 
     outputs:
@@ -132,7 +132,7 @@ jobs:
     # Dependabot doesn't have access to all secrets, so we skip this job
     if: github.actor != 'dependabot[bot]'
 
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     timeout-minutes: 30
 
     steps:

.github/workflows/release.yml

@@ -27,7 +27,7 @@ on:
 jobs:
   make-release:
     if: github.event.action == 0 || (github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'Merge triggers release')) # empty string returns 0; for case when workflow is triggered manually
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     name: Make App Store Connect Release
 
     steps:

.github/workflows/sync-end-to-end.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   build-for-sync-end-to-end-tests:
     name: Build for Sync End To End Tests
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     timeout-minutes: 30
 
     steps:
@@ -68,7 +68,7 @@ jobs:
   sync-end-to-end-tests:
     name: Sync End To End Tests
     needs: build-for-sync-end-to-end-tests
-    runs-on: macos-13-xlarge
+    runs-on: macos-14-xlarge
     timeout-minutes: 90
     strategy:
       matrix:

.xcode-version

@@ -1 +1 @@
-15.2
+15.4