Add missing dependencies (#2254)

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## Pull Request Details

I found the required dependencies are missing in the Package.swift.

These are the related targets.

- FacebookAEM( `.aem`)
- FBAEMKit (`.Prefixed.aem`)
- FBSDKCoreKit_Basics (`.Prefixed.basics`)

FacebookAEM requires FBAEM. FacebookAEM just exports FBAEM interfaces.
https://github.com/facebook/facebook-ios-sdk/blob/41044df838ef3fefe600fb96b6560dc8a2b2a18a/Sources/FacebookAEM/Exports.swift#L10

`FBAEMKit` imports `FBSDKCoreKit_Basics`. In fact, `.swiftinterface` of distributed `FBAEMKit.xcframework` attempts to import `FBSDKCoreKit_Basics`.

So it need to add dependencies for `FBSDKCoreKit_Basics`. But there are no dependencies.
It causes error on some build environment.

`FBAEMKit` is a binary target, so it can't have dependencies directly. So I added the dependencies to `FBSDKCoreKit_Basics` from `FacebookAEM`.

Pull Request resolved: #2254

Test Plan: This manifest works.

Reviewed By: joesus

Differential Revision: D49624751

Pulled By: TimOliver

fbshipit-source-id: 1a163f506af643fdb2ef87215c4bafbeef4759f2

Package.swift

@@ -137,7 +137,7 @@ extension Target {
         "https://github.com/facebook/facebook-ios-sdk/releases/download/v16.2.1/\(targetName)-Static_XCFramework.zip"
     }
 
-    static let aem = target(name: .aem, dependencies: [.Prefixed.aem])
+    static let aem = target(name: .aem, dependencies: [.Prefixed.basics, .Prefixed.aem])
 
     static let core = target(
         name: .core,