SNOW-2306340: Add pki-oversight as a joint owner for PKI-related files (#2564)

Author: sfc-gh-jkasten

.github/CODEOWNERS

@@ -1 +1,5 @@
 * @snowflakedb/snow-drivers-warsaw
+/src/snowflake/connector/ocsp_* @snowflakedb/pki-oversight @snowflakedb/snow-drivers-warsaw
+/src/snowflake/connector/crl.py @snowflakedb/pki-oversight @snowflakedb/snow-drivers-warsaw
+/src/snowflake/connector/crl_cache.py @snowflakedb/pki-oversight @snowflakedb/snow-drivers-warsaw
+/src/snowflake/connector/ssl_wrap_socket.py @snowflakedb/pki-oversight @snowflakedb/snow-drivers-warsaw