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

The Debug exporter implements outputting metric data point as one-liners in #10462. This PR is missing bucket output for Exponential Histogram metric type: https://github.com/open-telemetry/opentelemetry-collector/pull/10462/files#diff-58cbcb7b06ddbcabde95075b54705aecfa51b6a57f3326795bccadaf0f50bde8R123.

Describe the solution you'd like

I would like this to be implemented. 🙂

It's not a terrible amount of work, but it needs to be correct, and I didn't want to withhold the metrics PR any longer.