Upgrade to AssertJ 3.23.1.

Author: jxblum

gradle/dependency-management.gradle

@@ -2,7 +2,7 @@
 ext['jakartaServletApiVersion'] ='4.0.4'
 ext['jakartaServletJspJstlApiVersion'] = '1.2.7'
 ext['apacheTaglibsVersion'] = '1.2.5'
-ext['assertjVersion'] = '3.22.0'
+ext['assertjVersion'] = '3.23.1'
 ext['findbugsVersion'] = '3.0.2'
 ext['log4jVersion'] = '2.17.2'
 // Logback version is currently constrained by tbe Gretty Gradle Plugin.