Merge branch '8-improve-ci' into 'master'

Improve CI

Closes #8.

- change image to `bitwalker/alpine-elixir:1.10.4`
- 5 stages, 2 sequences in parallel: 1 cache for dev, 1 for test
- 2 artifacts for reports
- 1 artifact for dialyzer PLT (cache as artifact so that it still caches on fail)

See merge request kazarma/matrix_app_service.ex!9

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/matrix_app_service/application.ex b/lib/matrix_app_service/application.ex
index 408d5ab..df9acab 100644
--- a/lib/matrix_app_service/application.ex
+++ b/lib/matrix_app_service/application.ex
@@ -49,15 +49,15 @@ defmodule MatrixAppService.Application do
     :ok
   end
 
-  def start_endpoint?() do
+  def start_endpoint? do
     Application.get_env(:matrix_app_service, :internal_supervisor, false)
   end
 
-  def start_repo?() do
+  def start_repo? do
     Application.get_env(:matrix_app_service, :internal_repo, false)
   end
 
-  def endpoint_config() do
+  def endpoint_config do
     [
       transaction_adapter: Application.fetch_env!(:matrix_app_service, :transaction_adapter),
       room_adapter: Application.fetch_env!(:matrix_app_service, :room_adapter),