Batch Boot Runner only supports one job.

Needed to update TaskJobLauncher to support only one job.
Updated tests accordingly
Re-added Added tests removed from M3 release

spring-cloud-task-samples/batch-job/src/main/java/io/spring/configuration/JobConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2019 the original author or authors.
+ * Copyright 2016-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -58,19 +58,4 @@ public class JobConfiguration {
 				.build())
 			.build();
 	}
-
-	@Bean
-	public Job job2() {
-		return this.jobBuilderFactory.get("job2")
-			.start(this.stepBuilderFactory.get("job2step1")
-				.tasklet(new Tasklet() {
-					@Override
-					public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
-						logger.info("Job2 was run");
-						return RepeatStatus.FINISHED;
-					}
-				})
-				.build())
-			.build();
-	}
 }