Bump flask from 2.0.3 to 2.2.5 (#6)

Bumps [flask](https://github.com/pallets/flask) from 2.0.3 to 2.2.5.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@2.0.3...2.2.5)

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

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Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-Flask==2.0.3
+Flask==2.2.5
 gunicorn
 ibm_db == 3.1.2
 python-dotenv==0.15.0