CI: Pass '--latest' to anod commands

This should improve the availability of the CI on the days where
builds are late.

Also make the job interruptible, and remove some environment
commands that are now baked into the image.

Author: setton

.gitlab-ci.yml

@@ -12,9 +12,6 @@ build_and_test:
      - mem:16
   stage: build_and_test
   script:
-    - . ~/.aws_container_credentials
-    - export PATH=/it/e3/bin:$PATH
-
     # Setup the 'anod vcs' for this repo
     - cd /it/wave
     - anod vcs --add-repo gnatstudio $CI_PROJECT_DIR
@@ -44,8 +41,8 @@ build_and_test:
 
     # Build & test using anod
     - cd /it/wave
-    - anod build gps --minimal
-    - anod build gps_testsuite_drivers --minimal
+    - anod build gps --minimal --latest
+    - anod build gps_testsuite_drivers --minimal --latest
     # Set this to deactivate some event-synth tests
     - export GITLAB_CI=1