Update dependency org.assertj:assertj-core to v3.27.6 (#180)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 asciidoctorPlugin = "4.0.5"
-assertj = "3.27.5"
+assertj = "3.27.6"
 commons-io = "2.20.0"
 commons-lang3 = "3.19.0"
 compile-testing = "0.23.0"