Fix reference to privacy manifest in podspec

When static framework linking is used with Cocoapods, files referenced using `resource` are just directly copied into the main app bundle, potentially clobbering each other or main app resources in the process. i.e., the PrivacyInfo.xcprivacy from ZIPFoundation can overwrite the one for the app itself.

The correct way to include PrivacyInfo.xcprivacy is by using `resource_bundles` to create a nested bundle to contain the file.

(If dynamic linking is used, this bundle will be nested inside the framework bundle for the pod; if static linking is used, the bundle is nested directly in the main app bundle. In either case, clobbering is avoided.)

ZIPFoundation.podspec

@@ -16,5 +16,5 @@ Pod::Spec.new do |s|
   s.visionos.deployment_target = '1.0'
 
   s.source_files = 'Sources/ZIPFoundation/*.swift'
-  s.resource = 'Sources/ZIPFoundation/Resources/PrivacyInfo.xcprivacy'
+  s.resource_bundles = {'ZIPFoundation_Privacy' => ['Sources/ZIPFoundation/Resources/PrivacyInfo.xcprivacy']}
 end