[#1390] update spring bppt to 3.4.12 (#1509)

Author: chengyouling

pom.xml

@@ -37,7 +37,7 @@
     <!-- spring-cloud-dependencies do not import spring-boot-dependencies, spring-boot-dependencies
      import spring-framework-bom. No need configure spring version. -->
     <spring-cloud.version>2024.0.2</spring-cloud.version>
-    <spring-boot.version>3.4.9</spring-boot.version>
+    <spring-boot.version>3.4.12</spring-boot.version>
     <servicecomb.version>2.8.27</servicecomb.version>
   </properties>