Bump scipy from 1.4.1 to 1.7.1

Bumps [scipy](https://github.com/scipy/scipy) from 1.4.1 to 1.7.1.
- [Release notes](https://github.com/scipy/scipy/releases)
- [Commits](scipy/scipy@v1.4.1...v1.7.1)

---
updated-dependencies:
- dependency-name: scipy
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -11,6 +11,6 @@ numpy>=1.14.5
 pandas==1.3.2
 scikit-learn== 0.24.1
 scikit-image==0.17.2
-scipy==1.4.1
+scipy==1.7.1
 pure-predict==0.0.4
 numba==0.53.1