ci: improve performance (#5953)

* pipeline runs on ubuntu instead of docker
* added Makefile to build zitadel core (backend) and console (frontend)
* pipeline runs in parallel where possible
* pipeline is split into multiple jobs
* removed goreleaser
* added command to check if zitadel instance is running

.golangci.yaml

@@ -6,7 +6,7 @@ issues:
   max-same-issues: 0
 
 run:
-  concurrency: 2
+  concurrency: 4
   timeout: 10m
   go: '1.19'
   skip-dirs: