fix: requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-6182918

requirements.txt

@@ -10,7 +10,7 @@ mypy==1.8.0
 numexpr==2.8.8
 numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability
 openai==1.6.1
-pillow>=10.0.1 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=10.2.0 # not directly required, pinned by Snyk to avoid a vulnerability
 pyarrow>=14.0.1 # not directly required, pinned by Snyk to avoid a vulnerability
 pypdf==3.17.4
 requests>=2.31.0 # not directly required, pinned by Snyk to avoid a vulnerability