Support export Otlp for metrics

[conghuhu]

• [x] I have searched the issues of this repository and believe that this is not a duplicate.
• [x] I have searched the release notes of this repository and believe that this is not a duplicate.

Describe the feature

https://github.com/apache/dubbo/issues/12497

Users hope that in future versions, metrics will support OTlp export. Currently, tracing has been implemented

[songxiaosheng]

ref: https://micrometer.io/docs/registry/otlp

[walkinggo]

Is there anyone want to do it?i want to try it if no one want do it.

[songxiaosheng]

Is there anyone want to do it?i want to try it if no one want do it.

help check this pr #13902