add new metric to karpenter (#17661)

* add new metric to karpenter

* changelog

Author: steveny91

karpenter/changelog.d/17661.added

@@ -0,0 +1 @@
+Add new metrics

karpenter/datadog_checks/karpenter/metrics.py

@@ -49,6 +49,7 @@
     'karpenter_cloudprovider_errors': 'cloudprovider.errors',
     'karpenter_cloudprovider_instance_type_cpu_cores': 'cloudprovider.instance.type.cpu_cores',
     'karpenter_cloudprovider_instance_type_memory_bytes': 'cloudprovider.instance.type.memory_bytes',
+    'karpenter_cloudprovider_instance_type_offering_available': 'cloudprovider.instance.type.offering_available',
     'karpenter_cloudprovider_instance_type_price_estimate': 'cloudprovider.instance.type.price_estimate',
     'karpenter_consistency_errors': 'consistency.errors',
     'karpenter_deprovisioning_actions_performed': 'deprovisioning.actions_performed',
@@ -108,6 +109,7 @@
     'karpenter_provisioner_usage_pct': 'provisioner.usage.pct',
     'karpenter_cluster_state_synced': 'cluster_state.synced',
     'karpenter_cluster_state_node_count': 'cluster_state.node_count',
+    'leader_election_master_status': 'leader_election.master_status',
     'process_cpu_seconds': 'process.cpu_seconds',
     'process_max_fds': 'process.max_fds',
     'process_open_fds': 'process.open_fds',