mark group as optional

Author: carlcsaposs-canonical

pyproject.toml

@@ -60,6 +60,8 @@ tenacity = "^9.1.2"
 allure-pytest = "^2.14.3"
 allure-pytest-default-results = "^0.1.3"
 
+[tool.poetry.group.build-refresh-version]
+optional = true
 
 [tool.poetry.group.build-refresh-version.dependencies]
 charm-refresh-build-version = "^0.4.0"