Merge pull request #1066 from tskit-dev/dependabot/pip/python/requirements/CI-complete/numpy-1.19.4

Bump numpy from 1.19.3 to 1.19.4 in /python/requirements/CI-complete

Author: mergify[bot]

python/requirements/CI-complete/requirements.txt

@@ -10,7 +10,7 @@ msgpack==1.0.0
 msprime==0.7.4
 networkx==2.5
 newick==1.0.0
-numpy==1.19.3
+numpy==1.19.4
 portion==2.1.3
 pyparsing==2.4.7
 pysam==0.16.0.1