Update InfluxDB task for tx count summarization

analytics/scripts/vaa_count_1h.flux

@@ -0,0 +1,19 @@
+import "date"
+
+option task = {
+    name: "vaa_count grouped by hour",
+    every: 1h,
+}
+
+start = date.truncate(t: -1h, unit: 1h)
+stop = date.truncate(t: now(), unit: 1h)
+sourceBucket = "wormscan-30days"
+destinationBucket = "wormscan"
+
+from(bucket: sourceBucket)
+    |> range(start: start, stop: stop)
+    |> filter(fn: (r) => r["_measurement"] == "vaa_count")
+    |> group()
+    |> aggregateWindow(every: 1h, fn: count, createEmpty: true)
+    |> set(key: "_measurement", value: "vaa_count_1h")
+    |> to(bucket: destinationBucket, fieldFn: (r) => ({"count": r._value}))