fixup! Use kaniko to build Docker image

.gitlab-ci.yml

@@ -7,7 +7,7 @@ Build Docker image:
     entrypoint: [""]
   script:
     - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
-    - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile.ci --destination $CI_REGISTRY_IMAGE:$CI_COMMIT_TAG
+    - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $CI_REGISTRY_IMAGE:$CI_COMMIT_TAG
 
 Publish on PyPI:
   stage: deploy