Merge branch 'develop' into 'main'

Update to v2.2.15 of upstream image

See merge request !38

.gitlab-ci.yml

@@ -5,7 +5,7 @@ include:
 
 variables:
   VERSION: ${CI_COMMIT_TAG}
-  CI_VERSION: v2.2.14
+  CI_VERSION: v2.2.15
 
 before_script:
   - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY