fix: requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-URLLIB3-10390193

Author: snyk-bot

requirements.txt

@@ -49,6 +49,6 @@ soupsieve==2.3.2.post1; python_version >= '3.6'
 sqlparse==0.4.2; python_version >= '3.5'
 tweepy==4.10.1
 tzdata==2022.2; sys_platform == 'win32'
-urllib3==1.26.12; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5' and python_version < '4'
+urllib3==2.5.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5' and python_version < '4'
 whitenoise==6.2.0
 wrapt==1.14.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'