Upgrade AssertJ to 3.27.7 (#262)

Author: hduelme

build.gradle

@@ -112,7 +112,7 @@ dependencies {
     testImplementation('org.junit.jupiter:junit-jupiter-api')
     testImplementation('org.junit.jupiter:junit-jupiter-engine')
     testRuntimeOnly('org.junit.vintage:junit-vintage-engine')
-    testImplementation('org.assertj:assertj-core:3.26.3')
+    testImplementation('org.assertj:assertj-core:3.27.7')
     testImplementation('org.apache.commons:commons-text:1.15.0')
     testImplementation( 'junit:junit:4.13.2' )
     testRuntimeOnly('org.immutables:value:2.10.1')