Add Metrics to "opentelemetry-instrumentation-dbapi"

### What problem do you want to solve? Add support for Database metrics to the "opentelemetry-instrumentation-dbapi" instrumentation library in accordance to: https://opentelemetry.io/docs/specs/semconv/db/database-metrics/ ### Would you like to implement a fix? Yes ### Tip _{[React](https://github.blog/news-insights/product-news/add-reactions-to-pull-requests-issues-and-comments/) with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding `+1` or `me too`, to help us triage it. Learn more [here](https://opentelemetry.io/community/end-user/issue-participation/).}