SpringBoot Upgrade to Log4J 2.15.0 or higher (CVE-2021-44228)

Upgrade the log4j2.version property to 2.15.0 or higher, ASAP, to address this severe zero-day vulnerability: https://nvd.nist.gov/vuln/detail/CVE-2021-44228

I am posting this here because the normal channels for reporting this vulnerability are "too slow" to address this zero-day vulnerability.

Comment From: alan-czajkowski

addressed here: #28983