chore(ios): update spm from 7.0.0 to 8.0.0-beta (#51)

Author: OS-ruimoreiramendes

packages/capacitor-plugin/Package.swift

@@ -10,7 +10,7 @@ let package = Package(
             targets: ["FilesystemPlugin"])
     ],
     dependencies: [
-        .package(url: "https://github.com/ionic-team/capacitor-swift-pm.git", from: "7.0.0"),
+        .package(url: "https://github.com/ionic-team/capacitor-swift-pm.git", from: "8.0.0-beta"),
         .package(url: "https://github.com/ionic-team/ion-ios-filesystem.git", from: "1.0.1")
     ],
     targets: [