Fix container create error on unauthenticated SMTP

[ananace]

If you're using an internal SMTP server which doesn't use authentication for services, then the helm chart deploys an unusable sidekiq container;

$ kubectl --namespace mastodon get pods
...
mastodon-sidekiq-all-queues-58c6b4948f-fktj6   0/1     CreateContainerConfigError   0                24s
$ kubectl --namespace get events | grep sidekiq
...
32s       Warning   Failed                   pod/mastodon-sidekiq-all-queues-58c6b4948f-fktj6    Error: couldn't find key password in Secret mastodon/mastodon-smtp

[jasonadamyoung]

Can a maintainer please merge this?

This one is a simple, low-impact change for anyone with a password, and it's definitely necessary for those without it.

I've been running with this since at least last year when @ananace submitted the PR.

Thanks!

[jasonadamyoung]

This definitely speaks to the maintenance assistance desire in #46

[timetinytim]

Sorry for the delay! We're finally going through the chart. Getting it merged now.

[jasonadamyoung]

Great, thanks for picking this up @timetinytim!

I also just circled back and read #129 as well, that's all exciting. Thanks for your work and communication, Tim!