upgrade deps in wkcuber

Author: normanrz

wkcuber/poetry.lock

@@ -10,7 +10,7 @@ homepage = "https://docs.webknossos.org/wkcuber"
 include = ["wkcuber/version.py"]  # included explicitly since it's in .gitignore
 
 [tool.poetry.dependencies]
-python = "^3.7,>=3.7.1"
+python = ">=3.7.1,<3.9"
 attrs = "^21.1.0"
 cattrs = "1.7.1"
 cluster_tools = { path = "../cluster_tools/", develop = true }
@@ -29,7 +29,7 @@ tifffile = "^2020.11.26"
 webknossos = { path = "../webknossos/", develop = true }
 wkw = "1.1.11"
 zarr = "^2.11.0"
-universal-pathlib = "0.0.16"
+universal-pathlib = "0.0.18"
 
 [tool.poetry.dev-dependencies]
 black = "^20.8b1"