Bump numpy from 1.13.1 to 1.21.0 in /public-engines/sample-engine

Bumps [numpy](https://github.com/numpy/numpy) from 1.13.1 to 1.21.0.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/HOWTO_RELEASE.rst)
- [Commits](https://github.com/numpy/numpy/compare/v1.13.1...v1.21.0)

---
updated-dependencies:
- dependency-name: numpy
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/public-engines/sample-engine/setup.py b/public-engines/sample-engine/setup.py
index dd5742c..0378279 100644
--- a/public-engines/sample-engine/setup.py
+++ b/public-engines/sample-engine/setup.py
@@ -85,7 +85,7 @@
         'six>=1.10.0',
         'scikit-learn==0.18.2',
         'scipy==0.19.1',
-        'numpy==1.13.1',
+        'numpy==1.21.0',
         'pandas==0.20.3',
         'matplotlib==2.0.2',
         'marvin-python-toolbox==0',