feat(ci): remove source command from build script in .gitlab-ci.yml

.gitlab-ci.yml

@@ -35,7 +35,6 @@ release:
     - export JAR_NAME=${JAR_NAME}
     - export BUILD_DATE=${BUILD_DATE}
   script:
-    - source build.env
     - echo "Release ${JAR_NAME} created at ${BUILD_DATE}"
   release:
     name: "Release ${BUILD_DATE}"