Wild shot – Use Xcode 14.3

See CI failure:

```
▸ Linking WordPress
⚠️  ld: Could not find or use auto-linked library 'swiftCompatibility56'

❌  ld: symbol(s) not found for architecture x86_64
```

https://buildkite.com/automattic/wordpress-ios/builds/14356#01885545-c05a-43a8-b475-d0d683857672

.buildkite/pipeline.yml

@@ -9,7 +9,7 @@ common_params:
   # Common environment values to use with the `env` key.
   - &common_env
     # Be sure to also update the `.xcode-version` file when updating the Xcode image/version here
-    IMAGE_ID: xcode-14.2
+    IMAGE_ID: xcode-14.3
     BUILDKITE_PLUGINS_ALWAYS_CLONE_FRESH: true
 
 # This is the default pipeline – it will build and test the app