Update Backbone types: attributes is T - and fix failing type checks

patches/@types+backbone+1.4.5.patch

@@ -1,8 +1,8 @@
 diff --git a/node_modules/@types/backbone/index.d.ts b/node_modules/@types/backbone/index.d.ts
-index a172230..b85ab4c 100644
+index a172230..6f6de9f 100644
 --- a/node_modules/@types/backbone/index.d.ts
 +++ b/node_modules/@types/backbone/index.d.ts
-@@ -218,7 +218,7 @@ declare namespace Backbone {
+@@ -218,14 +218,14 @@ declare namespace Backbone {
       * E - Extensions to the model constructor options. You can accept additional constructor options
       * by listing them in the E parameter.
       */
@@ -11,3 +11,11 @@ index a172230..b85ab4c 100644
  
          /**
          * Do not use, prefer TypeScript's extend functionality.
+         **/
+         public static extend(properties: any, classProperties?: any): any;
+ 
+-        attributes: any;
++        attributes: T;
+         changed: any[];
+         cidPrefix: string;
+         cid: string;