refactor(grpc): replace SpanAttributes with semconv attributes#3540

xrmx merged 5 commits intoopen-telemetry:mainopen-telemetry/opentelemetry-python-contrib:mainfrom

artemziborev:refactor-grpc-spanattributesartemziborev/opentelemetry-python-contrib:refactor-grpc-spanattributesCopy head branch name to clipboard