Use environment variable for iOS SDK version

Updated the iOS SDK version to use an environment variable for flexibility.

Author: m-kuhn

.github/workflows/ios.yml

@@ -25,6 +25,7 @@ jobs:
       DEPLOYMENT_TARGET: '16.0'
       BUILD_TYPE: 'Release'
       TRIPLET: 'arm64-ios'
+      IOS_SDK: '26.3'
 
     steps:
       - name: 🐣 Checkout
@@ -63,14 +64,14 @@ jobs:
         uses: maxim-lobanov/setup-xcode@v1.6.0
         if: ${{ env.SENTRY_AUTH_TOKEN != '' }}
         with:
-          xcode-version: 26.3
+          xcode-version: ${{ env.IOS_SDK }}
 
       - name: 🍹 Prepare ios build env
         if: ${{ env.SENTRY_AUTH_TOKEN != '' }}
         run: |
           xcrun simctl list > /dev/null
           xcrun simctl runtime list
-          xcodebuild -downloadPlatform iOS -buildVersion 26.0.1
+          xcodebuild -downloadPlatform iOS -buildVersion ${{ env.IOS_SDK }} -architectureVariant arm64
           brew uninstall cmake
           # Workaround GitHub Actions Python issues
           brew unlink python && brew link --overwrite python