Update stack config, add CI

.gitlab-ci.yml

+image: fpco/stack-build:lts-14.6
+
+variables:
+  STACK_ROOT: "${CI_PROJECT_DIR}/.stack"
+
+cache:
+  paths:
+    - .stack-work
+    - .stack
+
+build:
+  stage: build
+  script:
+    - stack build
+    - cp $(stack path --dist-dir)/build/mock-telegram-bot/mock-telegram-bot .
+  artifacts:
+    paths:
+      - mock-telegram-bot

package.yaml

@@ -4,7 +4,7 @@ license:             WTFPL
 git:                 "https://git.eisfunke.com/software/mock-telegram-bot"
 author:              "Nicolas Lenz"
 maintainer:          "nicolas@eisfunke.com"
-copyright:           "2018 Nicolas Lenz"
+copyright:           "2019 Nicolas Lenz"
 
 extra-source-files:
 - README.md

stack.yaml

-resolver: lts-12.24
+resolver: lts-14.6
 
 packages:
 - .
 
 extra-deps:
 - git: https://git.eisfunke.com/software/mock
-  commit: 235184eebb22ba7ee4a969e056c8283d1b864f0f
+  commit: 1a07d08f679de0ff3420d19d7d1cf3e9499db182