[player] Use function notation for transform method in cast pipe

to avoid lint errors in templates

projects/player/src/app/pipes/cast.pipe.ts

@@ -4,5 +4,8 @@ import { Pipe, PipeTransform } from '@angular/core';
   name: 'cast'
 })
 export class CastPipe implements PipeTransform {
-  transform = <S, T extends S>(value: S, type: T): T => <T>value;
+  // eslint-disable-next-line class-methods-use-this
+  transform<S, T extends S>(value: S, type: T): T {
+    return <T>value;
+  }
 }