Bump versions.spring_boot from 2.7.15 to 2.7.16

Bumps `versions.spring_boot` from 2.7.15 to 2.7.16.

Updates `org.springframework.boot:spring-boot-configuration-processor` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot-autoconfigure` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot-devtools` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot-starter-web` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot-starter-cache` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot-starter-actuator` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot-starter-thymeleaf` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot-starter-test` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

Updates `org.springframework.boot:spring-boot-gradle-plugin` from 2.7.15 to 2.7.16
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.15...v2.7.16)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-configuration-processor
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-autoconfigure
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-devtools
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-web
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-cache
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-actuator
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-thymeleaf
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-test
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-gradle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

gradle/dependencies.gradle

@@ -5,7 +5,7 @@
  */
 ext {
     versions = [
-            spring_boot                      : '2.7.15',
+            spring_boot                      : '2.7.16',
             spring                           : '5.3.30',
             spring_security                  : '5.8.7',
             spring_security_jwt              : '1.1.1.RELEASE',