fix: Make SPM use Capacitor 7 instead of main branch (#128)

Author: jcesarmobile

assets/plugin-template/Package.swift.mustache

@@ -10,7 +10,7 @@ let package = Package(
             targets: ["{{ CLASS }}Plugin"])
     ],
     dependencies: [
-        .package(url: "https://github.com/ionic-team/capacitor-swift-pm.git", branch: "main")
+        .package(url: "https://github.com/ionic-team/capacitor-swift-pm.git", from: "{{{ CAPACITOR_VERSION }}}")
     ],
     targets: [
         .target(