.gitlab-ci.yml: Add bash package in test-job

.gitlab-ci.yml

@@ -33,7 +33,7 @@ test-job:
   stage: test
   coverage: '/coverage: \d+.\d+% of statements/'
   before_script:
-    - apk update && apk upgrade && apk add build-base libcurl libpq-dev libxml2-dev nodejs openjdk11-jre sqlite-dev
+    - apk update && apk upgrade && apk add bash build-base libcurl libpq-dev libxml2-dev nodejs openjdk11-jre sqlite-dev
     - cd hyrax && bundle install --jobs 4 --retry 3
   script:
     - export FITS_PATH=/fits/fits-1.6.0/fits.sh