Update Grafana files

Author: ebattat

benchmark_runner/grafana/perf/dashboard.json

@@ -1096,6 +1096,10 @@
                            "index": 289,
                            "text": "4.15.5-5"
                         },
+                        "41563": {
+                           "index": 310,
+                           "text": "4.15.6-3"
+                        },
                         "4159": {
                            "index": 249,
                            "text": "4.15.9"
@@ -1204,6 +1208,10 @@
                            "index": 306,
                            "text": "4.16.10"
                         },
+                        "41611": {
+                           "index": 309,
+                           "text": "4.16.11"
+                        },
                         "4161142": {
                            "index": 293,
                            "text": "4.16.1-142"