Bump org.springframework.boot:spring-boot-actuator from 2.7.12 to 2.7.18 (#5390)

Bumps [org.springframework.boot:spring-boot-actuator](https://github.com/spring-projects/spring-boot) from 2.7.12 to 2.7.18.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.12...v2.7.18)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-actuator
  dependency-version: 2.7.18
  dependency-type: direct:production
...

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Author: dependabot[bot]

pom.xml

@@ -235,7 +235,7 @@
     <!-- spring -->
     <spring-framework.version>5.3.34</spring-framework.version>
     <spring-security.version>5.7.11</spring-security.version>
-    <spring.boot.version>2.7.12</spring.boot.version>
+    <spring.boot.version>2.7.18</spring.boot.version>
     <spring-netflix.version>3.1.7</spring-netflix.version>
     <spring-cloud.version>2021.0.8</spring-cloud.version>
     <spring-cloud-alibaba.version>2021.0.6.0</spring-cloud-alibaba.version>