docs(collector): update internal telemetry RPC metrics#9554

dol wants to merge 1 commit intoopen-telemetry:mainopen-telemetry/opentelemetry.io:mainfrom

dol:fix/internal-telemetry-rpc-semconvdol/opentelemetry.io:fix/internal-telemetry-rpc-semconvCopy head branch name to clipboard