updates to CI

[edaniszewski]

This PR:

• updates CI to use the latest patterns

I added the linting and snapshot build to a parallel block, but it doesn't look like they executed in parallel -- @lazypower I'm unsure if I just declared it incorrectly, or if its not possible to do w/ the new setup.

I also noticed that it spins up a new pod for stages which will be skipped, so skipped stages have to wait until the pod is ready in order to be skipped. Not sure if there is something I should be doing in config to avoid this, or if this is a known thing and is on the plate of future improvements

[lazypower]

Nice use of hopping across the agents. I dont think you actually need to use golang-next if you're using golang-alpha but this is also 💯 valid. Just not something I'd have thought to do because thsi will introduce a bit of a lag when building as the jobs migrate between hosts.

[edaniszewski]

@lazypower made some updates to run it all on golang-alpha and to run some steps in parallel - could you give it another quick look-over?