Update dependencies in preparation for release 0.5.6 (#175)

* Update Reactor to 3.6.7

* Update Junit Jupiter to 5.11.0-M2

* Update AssertJ to 3.26.0

gradle/libs.versions.toml

@@ -17,21 +17,21 @@
 # under the License.
 #
 [versions]
-assertj = "3.25.3"
+assertj = "3.26.0"
 # @pin
 caffeine = "2.9.3"
 checkstyle = "8.45.1"
 # @pin
 jackson = "2.14.2"
 # @pin
 jctools = "3.3.0"
-junit-jupiter = "5.10.2"
+junit-jupiter = "5.11.0-M2"
 licenser = "0.6.1"
 log4j = "2.23.1"
 mockito = "5.12.0"
 pulsar = "3.2.3"
 rat-gradle = "0.8.0"
-reactor = "3.6.6"
+reactor = "3.6.7"
 slf4j = "2.0.13"
 spring-javaformat = "0.0.41"
 testcontainers = "1.19.8"