kapacitor 1.6.2 test build failure

👋 trying to upgrade the [kapacitor formula to the latest release](https://github.com/Homebrew/homebrew-core/pull/86142), v1.6.2, but run into some test build failure issue as below:

on the server side,

```
ts=2021-09-30T01:50:57.125-04:00 lvl=error msg="failed to connect to InfluxDB, retrying..." service=influxdb cluster=default err="Get \"http://localhost:8086/ping\": dial tcp 127.0.0.1:8086: connect: connection refused"
```

On the client side

```
$ kapacitor list tasks
Error: Get "http://localhost:9092/kapacitor/v1/tasks?dot-view=attributes&fields=type&fields=status&fields=executing&fields=dbrps&limit=100&offset=0&pattern=&replay-id=&script-format=formatted": dial tcp 127.0.0.1:9092: connect: connection refused
```
---

Just want to confirm if with the latest release, does `kapacitor` need influxdb for test build now? Thanks!

Start by reproducing the Kapacitor 1.6.2 test build and compare the server and client errors shown in the issue. Check whether the test setup starts InfluxDB and Kapacitor on the expected ports; done means the test build completes reliably or its required service dependency is clearly identified.

Written by the indexing model from the issue text.