fix: ci/snyk/requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-SNOWFLAKECONNECTORPYTHON-8303773

ci/snyk/requirements.txt

@@ -1,5 +1,5 @@
 setuptools>=40.6.0
 wheel
 cloudpickle>=1.6.0,<=2.0.0
-snowflake-connector-python>=3.10.0,<4.0.0
+snowflake-connector-python>=3.12.3
 typing-extensions>=4.1.0,<5.0.0