fix: requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-NUMPY-2321964
- https://snyk.io/vuln/SNYK-PYTHON-NUMPY-2321966
- https://snyk.io/vuln/SNYK-PYTHON-NUMPY-2321970
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-5918878
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-6043904
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-6182918
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-6219984
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-6219986
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-6514866

Author: snyk-bot

requirements.txt

@@ -20,7 +20,7 @@ paramiko>=3.4.0
 parse>=1.19.1
 parse-type>=0.6.2
 pdfminer>=20191125
-pillow>=10.0.1 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=10.3.0 # not directly required, pinned by Snyk to avoid a vulnerability
 pluggy>=1.2.0
 pre-commit>=3.3.3
 py>=1.11.0
@@ -45,3 +45,4 @@ typing-extensions>=4.7.1
 urllib3>=2.2.2
 wily>=1.24.2
 xmltodict>=0.13.0
+numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability