Bump matplotlib from 3.3.0 to 3.3.1

requirements.txt

@@ -7,7 +7,7 @@ importlib-metadata==1.7.0
 joblib==0.16.0
 llvmlite==0.31.0
 mlxtend==0.17.3
-matplotlib==3.3.0
+matplotlib==3.3.1
 more-itertools==8.4.0
 numba==0.48.0
 numpy==1.19.1

sphinx-doc/requirements_sphinx.txt

@@ -21,7 +21,7 @@ kiwisolver==1.1.0
 llvmlite==0.31.0
 Markdown==3.2.2
 MarkupSafe==1.1.1
-matplotlib==3.1.3
+matplotlib==3.3.1
 mlxtend==0.17.2
 more-itertools==8.2.0
 numba==0.48.0