Merge pull request #1065 from tskit-dev/dependabot/pip/python/requirements/CI-tests-pip/portion-2.1.4

Bump portion from 2.1.3 to 2.1.4 in /python/requirements/CI-tests-pip

Author: mergify[bot]

python/requirements/CI-tests-pip/requirements.txt

@@ -5,7 +5,7 @@ jsonschema==3.2.0
 h5py==3.0.0
 h5py==3.0.0
 svgwrite==1.4
-portion==2.1.3
+portion==2.1.4
 xmlunittest==0.5.0
 biopython==1.78
 kastore==0.3.1