Update macOS version and Xcode version in workflow

Author: muukii

.github/workflows/Docs.yml

@@ -8,13 +8,13 @@ on:
 
 jobs:
   deploy:
-    runs-on: macos-14
+    runs-on: macos-26
     concurrency:
       group: ${{ github.workflow }}-${{ github.ref }}
     steps:
       - uses: maxim-lobanov/setup-xcode@v1.1
         with:
-          xcode-version: "16.0"
+          xcode-version: "26.0"
       - uses: actions/checkout@v2
         with:
           submodules: true  # Fetch Hugo themes (true OR recursive)