Bump kiwisolver from 1.2.0 to 1.3.1

Bumps [kiwisolver](https://github.com/nucleic/kiwi) from 1.2.0 to 1.3.1.
- [Release notes](https://github.com/nucleic/kiwi/releases)
- [Changelog](https://github.com/nucleic/kiwi/blob/master/releasenotes.rst)
- [Commits](https://github.com/nucleic/kiwi/compare/1.2.0...1.3.1)

requirements.txt

@@ -4,7 +4,7 @@ cycler==0.10.0
 dataclasses==0.6
 dios==0.6.0
 dtw==1.4.0
-kiwisolver==1.2.0
+kiwisolver==1.3.1
 importlib-metadata==2.0.0
 joblib==0.17.0
 llvmlite==0.34.0

sphinx-doc/requirements_sphinx.txt

@@ -18,7 +18,7 @@ imagesize==1.2.0
 importlib-metadata==2.0.0
 Jinja2==2.11.2
 joblib==0.17.0
-kiwisolver==1.1.0
+kiwisolver==1.3.1
 llvmlite==0.34.0
 Markdown==3.3
 MarkupSafe==1.1.1