build(deps): bump spring.boot.version from 2.7.8 to 3.1.1

Bumps `spring.boot.version` from 2.7.8 to 3.1.1.

Updates `spring-boot-dependencies` from 2.7.8 to 3.1.1
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.8...v3.1.1)

Updates `spring-boot-maven-plugin` from 2.7.8 to 3.1.1
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.8...v3.1.1)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.springframework.boot:spring-boot-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

pom.xml

@@ -18,7 +18,7 @@
   <properties>
     <java.version>17</java.version>
     <feel.version>1.16.1</feel.version>
-    <spring.boot.version>2.7.8</spring.boot.version>
+    <spring.boot.version>3.1.1</spring.boot.version>
   </properties>
 
   <dependencyManagement>