Handle potential NPE

[jdpgrailsdev]

What

• Reduce runtime errors that can impact workflows

How

• Ensure that a default value is used for metric attribute values with source object is null.

Addresses this error:

java.lang.NullPointerException: Cannot invoke "io.airbyte.config.FailureReason$FailureOrigin.value()" because "origin" is null
	at io.airbyte.metrics.lib.MetricTags.getFailureOrigin(MetricTags.java:31)
	at io.airbyte.workers.temporal.scheduling.activities.JobCreationAndStatusUpdateActivityImpl.attemptFailure(JobCreationAndStatusUpdateActivityImpl.java:304)
	at io.airbyte.workers.temporal.scheduling.activities.JobCreationAndStatusUpdateActivityImpl.attemptFailureWithAttemptNumber(JobCreationAndStatusUpdateActivityImpl.java:316)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:578)
	at io.temporal.internal.activity.RootActivityInboundCallsInterceptor$POJOActivityInboundCallsInterceptor.executeActivity(RootActivityInboundCallsInterceptor.java:64)
	at io.temporal.internal.activity.RootActivityInboundCallsInterceptor.execute(RootActivityInboundCallsInterceptor.java:43)
	at io.temporal.internal.activity.ActivityTaskExecutors$BaseActivityTaskExecutor.execute(ActivityTaskExecutors.java:95)
	at io.temporal.internal.activity.ActivityTaskHandlerImpl.handle(ActivityTaskHandlerImpl.java:92)
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.handleActivity(ActivityWorker.java:241)
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.handle(ActivityWorker.java:206)
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.handle(ActivityWorker.java:179)
	at io.temporal.internal.worker.PollTaskExecutor.lambda$process$0(PollTaskExecutor.java:93)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1589)

Recommended reading order

1. MetricTags.java

Tests

• All tests pass
• Project builds successfully