Change .process to .copy in Package.swift

[relatedcode]

Change .process to .copy in Package.swift

```swift
 .target(
     name: "ProgressHUD",
     dependencies: [],
     path: "ProgressHUD/Sources",
     resources: [
         .copy("PrivacyInfo.xcprivacy"),  // Changed to .copy
     ]
 ),
```

Reasoning: .copy makes the intention very clear; copy this file as-is from the source to the destination, which helps ensure that Xcode doesn't attempt to perform any processing that results in the file not being recognized.*