fix(ci): use macos-26 runner for Logo.icon support

The new .icon format requires a macOS 26 runner with stable Xcode.
Removes the ASSETCATALOG_COMPILER_APPICON_NAME workaround.

Author: nniel-ape

.github/workflows/release.yml

@@ -11,11 +11,14 @@ permissions:
 jobs:
   build:
     name: Build unsigned release
-    runs-on: macos-15
+    runs-on: macos-26
 
     steps:
       - uses: actions/checkout@v4
 
+      - name: List Xcode versions
+        run: ls -d /Applications/Xcode*.app
+
       - name: Select Xcode
         run: sudo xcode-select -s "$(ls -d /Applications/Xcode*.app | sort -V | tail -1)/Contents/Developer"
 
@@ -40,8 +43,7 @@ jobs:
             CODE_SIGNING_ALLOWED=NO \
             CODE_SIGN_ENTITLEMENTS="" \
             DEVELOPMENT_TEAM="" \
-            MARKETING_VERSION="${{ steps.version.outputs.version }}" \
-            ASSETCATALOG_COMPILER_APPICON_NAME=""
+            MARKETING_VERSION="${{ steps.version.outputs.version }}"
 
       - name: Package zip
         run: |