Update RxSwift v6.0 deprecation

Author: cederache

.gitignore

@@ -1,2 +1,3 @@
 Example/Pods
-Example/Podfile.lock
+Example/Podfile.lock
+*.xcuserstate

BeappCache/Classes/RxCacheManager.swift

@@ -36,7 +36,7 @@ open class RxCacheManager {
 
             return Disposables.create()
 		}
-        .subscribeOn(ConcurrentDispatchQueueScheduler(qos: .background))
+        .subscribe(on: ConcurrentDispatchQueueScheduler(qos: .background))
 	}
 
     func buildAsyncObservableCaching<T>(asyncObservable: Single<T>, key: String, customExpirySecond: TimeInterval?) -> Single<CacheWrapper<T>> where T: Codable {

BeappCache/Classes/Strategy/AsyncOrCacheStrategy.swift

@@ -13,7 +13,7 @@ class AsyncOrCacheStrategy: CacheStrategyProtocol {
 	func getStrategyObservable<T>(cacheObservable: Maybe<CacheWrapper<T>>, asyncObservable: Single<CacheWrapper<T>>) -> Observable<CacheWrapper<T>> where T: Codable {
 		return asyncObservable
 			.asObservable()
-			.catchError({ (error) in
+            .catch({ (error) in
 				print("[ERROR] \(error)")
 				return cacheObservable.asObservable().ifEmpty(switchTo: Observable.error(error))
 			})