Bump org.springframework:spring-core from 5.3.27 to 6.0.15

Bumps [org.springframework:spring-core](https://github.com/spring-projects/spring-framework) from 5.3.27 to 6.0.15.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v5.3.27...v6.0.15)

---
updated-dependencies:
- dependency-name: org.springframework:spring-core
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -30,7 +30,7 @@
  <target.level>1.8</target.level>
  <dubbo.version>2.7.21</dubbo.version>
  <junit.version>4.12</junit.version>
- <spring.version>5.3.27</spring.version>
+ <spring.version>6.0.15</spring.version>
  <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
  <jib-maven-plugin.version>1.2.0</jib-maven-plugin.version>
  <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>