Bump scipy from 1.4.1 to 1.10.0 in /devtools/pip_requirements

Bumps [scipy](https://github.com/scipy/scipy) from 1.4.1 to 1.10.0.
- [Release notes](https://github.com/scipy/scipy/releases)
- [Commits](scipy/scipy@v1.4.1...v1.10.0)

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

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

devtools/pip_requirements/requirements_unix.txt

@@ -11,7 +11,7 @@ nbsphinx==0.7.1
 notebook==6.4.12
 numpy==1.19.1
 pandas==1.1.2
-scipy==1.5.2
+scipy==1.10.0
 sphinx==3.2.1
 sympy==1.6.2
 tqdm==4.49.0

devtools/pip_requirements/requirements_windows.txt

@@ -11,7 +11,7 @@ notebook==6.4.12
 numpy==1.18.1
 pandas==1.1.2
 pytest==5.4.3
-scipy==1.4.1
+scipy==1.10.0
 sphinx==3.2.1
 sympy==1.5.1
 tqdm==4.46.0