Upgrade to AssertJ 3.22.0.

Author: jxblum

gradle/dependency-management.gradle

@@ -1,7 +1,7 @@
 // Define dependency version properties
 ext['antlrVersion'] = '2.7.7'
 ext['apacheTaglibsVersion'] = '1.2.5'
-ext['assertjVersion'] = '3.21.0'
+ext['assertjVersion'] = '3.22.0'
 ext['javaxServletApiVersion'] ='4.0.1'
 ext['javaxServletJspJstlApiVersion'] = '1.2.2'
 ext['log4jVersion'] = '2.14.1'