(2.1.x): Bump org.springframework.boot from 3.1.2 to 3.1.3 (#830)

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 3.1.2 to 3.1.3.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v3.1.2...v3.1.3)

---
updated-dependencies:
- dependency-name: org.springframework.boot
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

settings.gradle

@@ -1,7 +1,7 @@
 pluginManagement {
 	plugins {
 		id "io.spring.nohttp" version "0.0.11"
-		id 'org.springframework.boot' version "3.1.2"
+		id 'org.springframework.boot' version "3.1.3"
 		id 'org.asciidoctor.jvm.pdf' version '3.3.2'
 		id 'org.asciidoctor.jvm.convert' version '3.3.2'
 	}