Bump microsphere-spring-boot to 0.2.27

Update the parent POM BOM property `microsphere-spring-boot.version` from `0.2.26` to `0.2.27` to align this project with the latest Microsphere Spring Boot release.

Author: mercyblitz

microsphere-spring-cloud-parent/pom.xml

@@ -20,7 +20,7 @@
 
     <properties>
         <!-- BOM versions -->
-        <microsphere-spring-boot.version>0.2.26</microsphere-spring-boot.version>
+        <microsphere-spring-boot.version>0.2.27</microsphere-spring-boot.version>
         <testcontainers.version>2.0.5</testcontainers.version>
         <!-- Testing -->
         <junit-jupiter.version>6.1.1</junit-jupiter.version>