fix: fix AccountSubscriptionsFeedResponse returning only shorts

Author: b5i

Sources/YouTubeKit/YouTubeResponseTypes/AuthenticatedResponses/AccountResponses/AccountSubscriptionsFeedResponse.swift

@@ -102,6 +102,8 @@ public struct AccountSubscriptionsFeedResponse: AuthenticatedContinuableResponse
     private static func getVideoFromItemRenderer(_ json: JSON) -> YTVideo? {
         if json["content", "videoRenderer"].exists() {
             return YTVideo.decodeJSON(json: json["content", "videoRenderer"])
+        } else if json["content", "lockupViewModel"].exists() {
+            return YTVideo.decodeLockupJSON(json: json["content", "lockupViewModel"])
         } else {
             return YTVideo.decodeShortFromJSON(json: json["content", "reelItemRenderer"]) ?? YTVideo.decodeShortFromLockupJSON(json: json["content", "shortsLockupViewModel"])
         }

Tests/YouTubeKitTests/YouTubeKitTests.swift

@@ -1256,6 +1256,7 @@ final class YouTubeKitTests: XCTestCase {
         XCTAssertNil(accountSubscriptionsFeedResponse.visitorData, TEST_NAME + "visitorData is not nil (but should never be extracted).")
 
         XCTAssertNotEqual(accountSubscriptionsFeedResponse.results.count, 0, TEST_NAME + "Checking if accountSubscriptionsFeedResponse.results is not empty.")
+        XCTAssertNotNil(accountSubscriptionsFeedResponse.results.first(where: {$0.channel != nil}), TEST_NAME + "Checking if at least one item has a channel.") // can fail if the user is not subscribed to channel with videos
 
         if accountSubscriptionsFeedResponse.continuationToken != nil {
             let continuationResponse = try await accountSubscriptionsFeedResponse.fetchContinuation(youtubeModel: YTM)