update links to openmetrics to reference the v1.0.0 release (open-telemetry#4356)

Author: dashpole

opentelemetry-proto/src/opentelemetry/proto/metrics/v1/metrics_pb2.pyi

@@ -98,7 +98,7 @@ def create_hw_power(
 Operational status: `1` (true) or `0` (false) for each of the possible states
 Instrument: updowncounter
 Unit: 1
-Note: `hw.status` is currently specified as an *UpDownCounter* but would ideally be represented using a [*StateSet* as defined in OpenMetrics](https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#stateset). This semantic convention will be updated once *StateSet* is specified in OpenTelemetry. This planned change is not expected to have any consequence on the way users query their timeseries backend to retrieve the values of `hw.status` over time.
+Note: `hw.status` is currently specified as an *UpDownCounter* but would ideally be represented using a [*StateSet* as defined in OpenMetrics](https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#stateset). This semantic convention will be updated once *StateSet* is specified in OpenTelemetry. This planned change is not expected to have any consequence on the way users query their timeseries backend to retrieve the values of `hw.status` over time.
 """