[JAVA-13976] Fix integration tests after Spring Boot upgrade to 2.7.2 (#12647)

persistence-modules/r2dbc/pom.xml

@@ -39,7 +39,6 @@
         <dependency>
             <groupId>io.r2dbc</groupId>
             <artifactId>r2dbc-h2</artifactId>
-            <version>${r2dbc-h2.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -61,8 +60,4 @@
         </plugins>
     </build>
 
-    <properties>
-        <r2dbc-h2.version>0.8.1.RELEASE</r2dbc-h2.version>
-    </properties>
-
 </project>