Bump pip from 21.2.4 to 23.3

Bumps [pip](https://github.com/pypa/pip) from 21.2.4 to 23.3.
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@21.2.4...23.3)

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

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

Author: dependabot[bot]

requirements.txt

@@ -3,7 +3,7 @@ charset-normalizer==2.1.0
 idna==3.3
 numpy==1.23.0
 pandas==1.4.3
-pip==21.2.4
+pip==23.3
 python-dateutil==2.8.2
 python-dotenv==0.20.0
 pytz==2022.1