GitHub Actions: Upload iOS release

.github/workflows/iOS.yml

@@ -5,7 +5,9 @@ on:
     branches:
       - master
   pull_request:
-    types: [ opened, synchronize ]
+    types: [opened, synchronize]
+  release:
+    types: [published]
 
 jobs:
   build:
@@ -51,3 +53,10 @@ jobs:
       with:
         name: devilutionx.ipa
         path: build/devilutionx.ipa
+
+    - name: Update Release
+      if: ${{ github.event_name == 'release' && !env.ACT }}
+      uses: svenstaro/upload-release-action@v2
+      with:
+        asset_name: build/devilutionx.ipa
+        overwrite: true