Merge pull request #1056 from Baeldung/dependabot/maven/io.projectreactor.kotlin-reactor-kotlin-extensions-1.2.3

Bump io.projectreactor.kotlin:reactor-kotlin-extensions from 1.1.5 to 1.2.3

Author: lor6

kotlin-self-executable-jar/kotlin-spring-executable/pom.xml

@@ -30,7 +30,7 @@
         <dependency>
             <groupId>io.projectreactor.kotlin</groupId>
             <artifactId>reactor-kotlin-extensions</artifactId>
-            <version>1.1.5</version>
+            <version>1.2.3</version>
         </dependency>
         <!-- Kotlin Reflect -->
         <dependency>