Bump numpy from 1.18.0 to 1.21.0

Bumps [numpy](https://github.com/numpy/numpy) from 1.18.0 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/v1.18.0...v1.21.0

)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -4,7 +4,7 @@ dataclasses-json==0.5.2
 docrep==0.2.7
 future==0.18.2
 gspread==3.6.0
-numpy==1.18.0
+numpy==1.21.0
 onnx==1.7.0
 onnxoptimizer
 onnxruntime==1.4.0