These are a few more minor updated dependencies, mostly in go.mod. I also see that the pubspec now has an update to the flutter version, which should have happened previously along with the flutter upgrade, but it didn't for whatever reason.
We had some old GitHub actions that were using old node versions. This updates them, removes some that have been archived/deprecated, and fixes caching of go dependencies.
This adds steps to our android debug smoke build to upload a debug apk on merges to main, retained for 60 days. This can be used to help test and troubleshoot builds in between Android releases.
This adds a workflow into PRs to build the iOS and Android apps, just to verify that they aren't completely broken / unable to build. They're debug builds, so it won't completely mirror the release build, but that allows us to avoid getting signing keys in the workflow.
