Watcher does not reset on ticker event

[aurecchia]

Exchange
All exchanges that support tickers

Subscription type
ticker

Describe the bug
The last update time kept internally in the watcher is not updated on ticker events, therefore clients that only subscribe to those are reconnected every 90 seconds.

To Reproduce

1. Connect to the ticker event with a client that supports that (e.g. the Bittrex one)
2. Wait for 90 seconds
3. The watcher logs info: watcher initiating reconnection then disconnects and reconnects the client.

Expected behavior
The client connection should be kept alive by ticker messages as well

Additional context
I'll provide a PR to fix the issue. In case this behaviour was intentional, I'll find a way around the problem :)

[bmancini55]

Thanks! That looks like a bug. If you would like to submit a PR that would be fantastic!

[bmancini55]

Released in v0.26.3, thanks!

[aurecchia]

Thank you for the quick reply as usual! :)