fix poetry version spec issue

Author: bckohan

pyproject.toml

@@ -46,7 +46,7 @@ exclude = ["render_static/tests"]
 python = "^3.6"
 Django = "^2.2||^3.0"
 Jinja2 = { version = "^2.9", optional = true }
-importlib-resources = { version = "^1.3.0||^2.0.0||^3.0.0||^5.0.0", optional = true }
+importlib-resources = { version = "^>=1.3.0&&<=6.0.0", optional = true }
 PyYAML = { version = "^5.1", optional = true }
 
 [tool.poetry.dev-dependencies]