Bump traitlets version to >= 5.0.0
@@ -10,7 +10,7 @@ RUN pip install --no-cache-dir \
aiohttp==3.7.2 \
colorlog \
cryptography \
- traitlets==4.3.3 \
+ traitlets>=5.0.0 \
pyyaml \
kubernetes-asyncio==11.0.0
