Append .git for dependencies in Package.swift for consistency. (#82)

Append `.git` for `dependencies` in `Package.swift` for consistency.

Author: lamtrinhdev

Package.swift

@@ -57,10 +57,10 @@ let package = Package(
         .package(url: "https://github.com/grpc/grpc-swift.git", from: "1.26.0"),
         .package(url: "https://github.com/apple/swift-protobuf.git", from: "1.29.0"),
         .package(url: "https://github.com/apple/swift-nio.git", from: "2.80.0"),
-        .package(url: "https://github.com/swiftlang/swift-docc-plugin", from: "1.1.0"),
+        .package(url: "https://github.com/swiftlang/swift-docc-plugin.git", from: "1.1.0"),
         .package(url: "https://github.com/swift-server/async-http-client.git", from: "1.20.1"),
-        .package(url: "https://github.com/orlandos-nl/DNSClient", from: "2.4.1"),
-        .package(url: "https://github.com/Bouke/DNS", from: "1.2.0"),
+        .package(url: "https://github.com/orlandos-nl/DNSClient.git", from: "2.4.1"),
+        .package(url: "https://github.com/Bouke/DNS.git", from: "1.2.0"),
         scDependency,
     ],
     targets: [