Update Ruby and Xcode versions

.github/workflows/build.yaml

@@ -21,6 +21,7 @@ jobs:
         xcode: [
           '15.2',
           '15.3',
+          '16.0',
         ]
     steps:
       - uses: actions/checkout@v4

.github/workflows/test.yaml

@@ -20,7 +20,7 @@ jobs:
         ]
         xcode: [
           '15.4',
-          '16.0',
+          '16.1',
         ]
     steps:
       - uses: actions/checkout@v4

.ruby-version

@@ -1 +1 @@
-3.3.1
+3.3.6