Photon is a Java implementation of the Interoperable Master Format (IMF) standard. IMF is a SMPTE standard whose core constraints are defined in the specification st2067-2:2013
This PR solely updates log4j to the latest version.
Note that the current version of Photon is not impacted by Log4Shell security issue because it currently uses Log4j version 1.2.17 and Log4Shell only affects version 2.0-beta9 to 2.15. However, there are other vulnerabilities in Log4j version 1.2 and the Apache Foundation
https://logging.apache.org/log4j/1.2/ says "Users are urged to upgrade to Log4j 2."
This PR solely updates log4j to the latest version. Note that the current version of Photon is not impacted by Log4Shell security issue because it currently uses Log4j version 1.2.17 and Log4Shell only affects version 2.0-beta9 to 2.15. However, there are other vulnerabilities in Log4j version 1.2 and the Apache Foundation https://logging.apache.org/log4j/1.2/ says "Users are urged to upgrade to Log4j 2."