- Removing rustup toolchain swap

Git version of rocket.rs no longer requires nightly so we're going
to start opting for stable toolchains

* Deploy stage on build-docker-image job

.gitlab-ci.yml

@@ -25,7 +25,6 @@ package:
   image: rustlang/rust:nightly
   stage: build
   script:
-    - rustup default nightly-2021-09-18
     - mkdir -p build
     - cp api/templates/ api/static/ build -r 
     - cd api/
@@ -41,7 +40,7 @@ package:
 
 # Build the updated docker
 build-docker-image:
-  stage: build
+  stage: deploy
   image: docker:stable
   only:
     refs: