Update links to openmetrics to reference the v1.0.0 release (#1682)

Author: dashpole

docs/hardware/common.md

@@ -246,7 +246,7 @@ This metric is [recommended][MetricRecommended].
 | -------- | --------------- | ----------- | -------------- | --------- |
 | `hw.status` | UpDownCounter | `1` | Operational status: `1` (true) or `0` (false) for each of the possible states [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
-**[1]:** `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.
+**[1]:** `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.
 
 | Attribute  | Type | Description  | Examples  | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
 |---|---|---|---|---|---|

model/hardware/common-metrics.yaml

@@ -56,7 +56,7 @@ groups:
     extends: metric.hw.attributes
     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).
+      [*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.