fix(host-metrics): semcov alignment & macOS fix

packages/opentelemetry-host-metrics/src/enum.ts

@@ -34,9 +34,7 @@ export enum ATTRIBUTE_NAMES {
   SYSTEM_DEVICE = 'system.device',
   SYSTEM_NETWORK_DIRECTION = 'system.network.direction',
   SYSTEM_NETWORK_STATE = 'system.network.state',
-  // TODO: change value if semconv changes
-  // https://github.com/open-telemetry/opentelemetry-specification/issues/3776
-  PROCESS_CPU_STATE = 'state',
+  PROCESS_CPU_STATE = 'process.cpu.state',
 }
 
 export enum CPU_LABELS {

packages/opentelemetry-host-metrics/src/stats/si.ts

@@ -14,12 +14,12 @@
  * limitations under the License.
  */
 
-import * as SI from 'systeminformation';
+import { networkStats } from 'systeminformation/lib/network';
 import { NetworkData } from '../types';
 
 export function getNetworkData() {
   return new Promise<NetworkData[]>(resolve => {
-    SI.networkStats()
+    networkStats()
       .then(resolve)
       .catch(() => {
         resolve([]);