Bump werkzeug from 0.15.3 to 0.15.5

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 0.15.3 to 0.15.5.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@0.15.3...0.15.5)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -3,7 +3,7 @@ numpy==1.22.0
 pandas==0.19.2
 scikit-learn==0.18.1
 scipy==0.18.1
-Werkzeug==0.15.3
+Werkzeug==0.15.5
 gunicorn==19.7.1
 vaderSentiment==2.5
 nltk==3.6.6