[ci] Select latest Xcode version for Github workflows

We need to either explicitly download simulator (slow) or we need to
make sure that fastlane finds the simulator that works with Xcode that
we are actually going to use

Author: charlag

.github/shared/swift-common/action.yml

@@ -9,6 +9,15 @@ runs:
       uses: swift-actions/setup-swift@cdbe0f7f4c77929b6580e71983e8606e55ffe7e4 # v1.26.2
       with:
         swift-version: ${{ env.swift-version }}
+    - name: Setup Xcode
+      uses: maxim-lobanov/setup-xcode@7f352e61cbe8130c957c3bc898c4fb025784ea1e
+      with:
+        xcode-version: latest-stable
+    - name: List simulators
+      shell: bash
+      run: |
+        xcrun simctl list
+        xcodebuild -showsdks
     - name: Install Homebrew
       uses: Homebrew/actions/setup-homebrew@d54a6744d5fcdff54b45a9659f3e17f769389952
     - name: Install Homebrew dependencies