Merge branch 'shared-ci' into 'development'

.gitlab-ci.yml

src/test/java/application/dev/DevSubmitApplication.java

.../application/migration/db/MigrationSubmitApplication.java

...cation/migration/nodb/NoDbMigrationSubmitApplication.java

...test/java/application/nodb/NoDbTestSubmitApplication.java

...st/java/nl/tudelft/submit/smoke/ApplicationTestClass.java

...ava/nl/tudelft/submit/smoke/DevSubmitApplicationTest.java

...ava/nl/tudelft/submit/smoke/MigrationApplicationTest.java

...nl/tudelft/submit/smoke/NoDbMigrationApplicationTest.java

src/test/java/nl/tudelft/submit/smoke/SmokeTest.java

...est/java/nl/tudelft/submit/smoke/TestSubmitSmokeTest.java

src/test/resources/application-dev.properties

src/test/resources/application-h2-file.properties

src/test/resources/application-h2.properties

src/test/resources/application-migration.properties

src/test/resources/application-mysql.properties

src/test/resources/application-postgresql.properties

src/test/resources/application-test.properties

src/test/resources/changelog-test-db.yaml

src/test/resources/changelog-test.yaml