fix: py/requirements_lock.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-CRYPTOGRAPHY-7161587

py/requirements_lock.txt

@@ -172,7 +172,7 @@ charset-normalizer==3.3.2 \
     --hash=sha256:fd1abc0d89e30cc4e02e4064dc67fcc51bd941eb395c502aac3ec19fab46b519 \
     --hash=sha256:ff8fa367d09b717b2a17a052544193ad76cd49979c805768879cb63d9ca50561
     # via requests
-cryptography==42.0.4 \
+cryptography==42.0.8 \
     --hash=sha256:01911714117642a3f1792c7f376db572aadadbafcd8d75bb527166009c9f1d1b \
     --hash=sha256:0e89f7b84f421c56e7ff69f11c441ebda73b8a8e6488d322ef71746224c20fce \
     --hash=sha256:12d341bd42cdb7d4937b0cabbdf2a94f949413ac4504904d0cdbdce4a22cbf88 \