Bump org.springframework.boot:spring-boot-starter-data-mongodb (#1316)

Bumps [org.springframework.boot:spring-boot-starter-data-mongodb](https://github.com/spring-projects/spring-boot) from 2.7.14 to 2.7.15.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.14...v2.7.15)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-starter-data-mongodb
  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>

plugins/maven/example-client/pom.xml

@@ -128,7 +128,7 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-mongodb</artifactId>
-            <version>2.7.14</version>
+            <version>2.7.15</version>
         </dependency>
 
         <dependency>