message: Fix combined context logger
diff: */
  import { IQueuedMessage } from "./queue";
  -import { ILogger, IContext } from "./lambdas";
  +import { IContext } from "./lambdas";
  /**
  * Allows checkpointing the minimum offset for multiple lambdas
  * This is useful to use for a CombinedLambda
  */
  export class CombinedContext {
  - public log: ILogger;
  -
  private currentCheckpoint: IQueuedMessage | undefined;
  private readonly checkpoints: (IQueuedMessage | undefined)[];
  @@ -25,7 +23,7 @@ export class CombinedContext {
  const id = this.checkpoints.push(undefined) - 1;
  return {
  - log: this.log,
  + log: this.context.log,
  checkpoint: (message) => this.checkpoint(id, message),
  error: (error, restart) => this.error(id, error, restart),
  };
  