Bump scipy from 1.7.3 to 1.8.0 in /extra_requirements

Bumps [scipy](https://github.com/scipy/scipy) from 1.7.3 to 1.8.0.
- [Release notes](https://github.com/scipy/scipy/releases)
- [Commits](scipy/scipy@v1.7.3...v1.8.0)

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

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

extra_requirements/requirements-tests.txt

@@ -32,7 +32,7 @@ pymongo==3.12.0                                 # Strax dependency
 pytest==6.2.5
 pytest-cov==3.0.0
 scikit-learn==1.0.2
-scipy==1.7.3                                    # Strax dependency
+scipy==1.8.0                                    # Strax dependency
 tensorflow==2.8.0rc1; python_version<="3.9"
 tensorflow==2.8.0rc1; python_version=="3.10"
 tqdm==4.62.2