Update dependency io.projectreactor:reactor-core to v3.8.3 (#493)

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

Author: renovate[bot]

type-alias-axon-serializer-integration-test/pom.xml

@@ -34,7 +34,7 @@
 		<xom.version>1.2.10</xom.version>
 		<jackson.core.version>2.21.0</jackson.core.version>
 		<jackson.version>2.21.0</jackson.version>
-		<reactor.version>3.8.2</reactor.version>
+		<reactor.version>3.8.3</reactor.version>
 
 		<!-- Logging libraries -->
 		<slf4j.version>2.0.17</slf4j.version>