Enable GC logs for G1 race configs (elastic#174)

With this commit we enable GC logs for all race configurations which
have the G1 garbage collector explicitly enabled.

Relates elastic#168

Author: danielmitterdorfer

night_rally/resources/race-configs-group-1.json

@@ -397,6 +397,7 @@
                 },
                 "car": "4gheap,g1gc",
                 "runtime-jdk": "13",
+                "telemetry": "gc",
                 "node-count": 3
               },
               {
@@ -411,7 +412,8 @@
                 ],
                 "challenge": "append-no-conflicts",
                 "car": "4gheap,g1gc",
-                "runtime-jdk": "13"
+                "runtime-jdk": "13",
+                "telemetry": "gc"
               },
               {
                 "name": "nyc_taxis-appendsorted-4g-1node",
@@ -481,6 +483,7 @@
                 },
                 "car": "4gheap,g1gc",
                 "runtime-jdk": "13",
+                "telemetry": "gc",
                 "node-count": 3
               },
               {
@@ -495,7 +498,8 @@
                 ],
                 "challenge": "append-no-conflicts",
                 "car": "4gheap,g1gc",
-                "runtime-jdk": "13"
+                "runtime-jdk": "13",
+                "telemetry": "gc"
               },
               {
                 "name": "nyc_taxis-appendsorted-4g-1node",

night_rally/resources/race-configs-group-2.json

@@ -383,7 +383,8 @@
                   "number_of_replicas": 0
                 },
                 "car": "defaults,g1gc",
-                "runtime-jdk": "13"
+                "runtime-jdk": "13",
+                "telemetry": "gc"
               },
               {
                 "name": "http_logs-append-4g-g1gc-1node",
@@ -398,6 +399,7 @@
                 "challenge": "append-no-conflicts",
                 "car": "4gheap,g1gc",
                 "runtime-jdk": "13",
+                "telemetry": "gc",
                 "exclude-tasks": "force-merge-1-seg,refresh-after-force-merge-1-seg,desc-sort-timestamp-after-force-merge-1-seg,asc-sort-timestamp-after-force-merge-1-seg"
               },
               {
@@ -519,7 +521,8 @@
                   "number_of_replicas": 0
                 },
                 "car": "defaults,g1gc",
-                "runtime-jdk": "13"
+                "runtime-jdk": "13",
+                "telemetry": "gc"
               },
               {
                 "name": "http_logs-append-4g-g1gc-1node",
@@ -533,7 +536,8 @@
                 ],
                 "challenge": "append-no-conflicts",
                 "car": "4gheap,g1gc",
-                "runtime-jdk": "13"
+                "runtime-jdk": "13",
+                "telemetry": "gc"
               },
               {
                 "name": "http_logs-no-src-1node",