fix: Fix the ratio metrics for measuring note processing speed (#29)

* fix: fix the ratio metrics for measuring note processing speed
* feat: re-add doc processing metrics
* fix: add the HTTP method to metric filtering

Author: baixiac

docker/monitoring/grafana/provisioning/dashboards/cms_deid_medcat.json

@@ -56,7 +56,7 @@
   "fiscalYearStartMonth": 0,
   "gnetId": 3662,
   "graphTooltip": 0,
-  "id": 7,
+  "id": 1,
   "links": [],
   "liveNow": false,
   "panels": [