fix(ci): expand homebrew cache paths for actions/cache compatibility

GitHub Actions cache doesn't support brace expansion in path specs.
Expanded {pkg1,pkg2} syntax to individual lines to fix path validation
warning during cache save step.

Related: homebrew caching optimization with smart version-based invalidation

Author: pythoninthegrass

.github/workflows/build-ios-app.yml

@@ -61,8 +61,14 @@ jobs:
         uses: actions/cache@v5
         with:
           path: |
-            ${{ steps.brew-prefix.outputs.prefix }}/Cellar/{xcodegen,libimobiledevice,libplist,libusbmuxd}
-            ${{ steps.brew-prefix.outputs.prefix }}/opt/{xcodegen,libimobiledevice,libplist,libusbmuxd}
+            ${{ steps.brew-prefix.outputs.prefix }}/Cellar/xcodegen
+            ${{ steps.brew-prefix.outputs.prefix }}/Cellar/libimobiledevice
+            ${{ steps.brew-prefix.outputs.prefix }}/Cellar/libplist
+            ${{ steps.brew-prefix.outputs.prefix }}/Cellar/libusbmuxd
+            ${{ steps.brew-prefix.outputs.prefix }}/opt/xcodegen
+            ${{ steps.brew-prefix.outputs.prefix }}/opt/libimobiledevice
+            ${{ steps.brew-prefix.outputs.prefix }}/opt/libplist
+            ${{ steps.brew-prefix.outputs.prefix }}/opt/libusbmuxd
           key: ${{ runner.os }}-${{ runner.arch }}-brew-${{ steps.brew-versions.outputs.xcodegen }}-${{ steps.brew-versions.outputs.libimobiledevice }}
           restore-keys: |
             ${{ runner.os }}-${{ runner.arch }}-brew-