feat: utility function to persist critical error

[adarsh0728]

Refer numaproj/numaflow#2479

Go SDK PR: numaproj/numaflow-go#189

[codecov]

Codecov Report

Attention: Patch coverage is 67.50000% with 13 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@8389e17). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...numaproj/numaflow/errors/PersistCriticalError.java	67.50%	9 Missing and 4 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #178   +/-   ##
=======================================
  Coverage        ?   59.98%           
  Complexity      ?      467           
=======================================
  Files           ?      151           
  Lines           ?     3354           
  Branches        ?      204           
=======================================
  Hits            ?     2012           
  Misses          ?     1204           
  Partials        ?      138           

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[yhl25]

Can we use a type?

[adarsh0728]

Testing:

Ran multiple threads and invoked PersistCriticalError method

[pool-3-thread-1] INFO io.numaproj.numaflow.errors.PersistCriticalError - ErrorEntry object created: io.numaproj.numaflow.errors.PersistCriticalError$ErrorEntry@5f47290a
[pool-3-thread-1] INFO io.numaproj.numaflow.errors.PersistCriticalError - ErrorEntry JSON: {"container":"transformer","timestamp":1743772205,"code":"500","message":"Critical Error","details":"A critical error occurred during processing."}
[pool-5-thread-4] INFO io.numaproj.numaflow.examples.sourcetransformer.eventtimefilter.EventTimeFilterFunction - IllegalStateException caught as expected: Persist critical error function has already been executed.
[pool-6-thread-3] INFO io.numaproj.numaflow.examples.sourcetransformer.eventtimefilter.EventTimeFilterFunction - IllegalStateException caught as expected: Persist critical error function has already been executed.
[pool-4-thread-3] INFO io.numaproj.numaflow.examples.sourcetransformer.eventtimefilter.EventTimeFilterFunction - IllegalStateException caught as expected: Persist critical error function has already been executed.
[pool-6-thread-2] INFO io.numaproj.numaflow.examples.sourcetransformer.eventtimefilter.EventTimeFilterFunction - IllegalStateException caught as expected: Persist critical error function has already been executed.

Only one file saved in the directory:

root@simple-mono-vertex-mv-0:/var/numaflow/runtime/application-errors/transformer# ls
1743772205-udf.json
root@simple-mono-vertex-mv-0:/var/numaflow/runtime/application-errors/transformer# cat 1743772205-udf.json 
{"container":"transformer","timestamp":1743772205,"code":"500","message":"Critical Error","details":"A critical error occurred during processing."}root@simple-mono-vertex-mv-0:/var/numaflow/runtime/application-errors/transformer# 

[yhl25]

Suggested change

	private static class ErrorEntry {
	private static class RuntimeErrorEntry {