Better metrics on OpenSearch document errors

[dlvenable]

Is your feature request related to a problem? Please describe.

Data Prepper reports a documentErrors metric which counts all document errors. However, it may be difficult to know the exact cause. Data Prepper also has metrics related to specific known errors that happen at the _bulk response.

Neither of these lets us analyze all the document status codes.

Describe the solution you'd like

Provide a dynamic metric which includes the status from the response item.

I'd also like to do this with tags/dimensions (see #3051 (comment) for a broader proposal on this)

<pipeline-name>.opensearch.documentStatus | status=<status>

Describe alternatives you've considered (Optional)

We could choose specific codes and have discrete metrics for those. But, this may miss some errors.

Additional context

See #4343 for another metric proposal to help with similar problems.