Some bug fixes (#8)

This PR contains the work done to fix some bug fixes that were encountered while quickly testing the interactions with the service endpoints. Furthermore, there is also a possible fix to build this library for non-apple platforms.

Reviewed-on: #8
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>

Package.swift

@@ -30,6 +30,7 @@ let package = Package(
         )
     ],
     dependencies: [
+        .package(url: "https://github.com/apple/swift-crypto.git", from: "3.13.0"),
         .package(url: "https://github.com/apple/swift-openapi-generator.git", from: "1.3.0"),
         .package(url: "https://github.com/apple/swift-openapi-runtime", from: "1.5.0"),
         .package(url: "https://github.com/apple/swift-openapi-urlsession", from: "1.0.2"),
@@ -39,6 +40,9 @@ let package = Package(
         .target(
             name: MarvelService.target,
             dependencies: [
+                .product(name: "Crypto", package: "swift-crypto", condition: .when(platforms: [
+                    .android, .linux, .openbsd, .windows
+                ])),
                 .product(name: "OpenAPIRuntime", package: "swift-openapi-runtime"),
                 .product(name: "OpenAPIURLSession", package: "swift-openapi-urlsession")
             ],
@@ -63,4 +67,4 @@ enum MarvelService {
     static let package = "marvel-service"
     static let target = "MarvelService"
     static let test = "\(MarvelService.target)Tests"
-}
+}