bump node-exporter rules to latest version

jsonnetfile.lock.json

@@ -119,8 +119,8 @@
           "subdir": "docs/node-mixin"
         }
       },
-      "version": "a3aaf63bb1262aada3cd9ca1fe59ffc3ea32e9e2",
-      "sum": "zpo4/qvCbAmfJXGjwrdzXcfsvg4fxZD6wi5af/kt+8g="
+      "version": "9c9c63630572ac706dcd0bd0e79dc03179f6d02c",
+      "sum": "GE8EJdQvnaaj31avW1OaJGY6xP+Vd6MqMu7/GgudRDQ="
     },
     {
       "source": {

manifests/prometheus-rules.yaml

@@ -936,7 +936,7 @@ spec:
         runbook_url: https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-nodenetworkreceiveerrs
         summary: Network interface is reporting many receive errors.
       expr: |
-        increase(node_network_receive_errs_total[2m]) > 10
+        rate(node_network_receive_errs_total[2m]) / rate(node_network_receive_packets_total[2m]) > 0.01
       for: 1h
       labels:
         severity: warning
@@ -946,7 +946,7 @@ spec:
         runbook_url: https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-nodenetworktransmiterrs
         summary: Network interface is reporting many transmit errors.
       expr: |
-        increase(node_network_transmit_errs_total[2m]) > 10
+        rate(node_network_transmit_errs_total[2m]) / rate(node_network_transmit_packets_total[2m]) > 0.01
       for: 1h
       labels:
         severity: warning
@@ -995,6 +995,8 @@ spec:
         summary: Clock not synchronising.
       expr: |
         min_over_time(node_timex_sync_status[5m]) == 0
+        and
+        node_timex_maxerror_seconds >= 16
       for: 10m
       labels:
         severity: warning