Bump org.springframework.boot from 2.6.7 to 2.7.0

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 2.6.7 to 2.7.0.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.6.7...v2.7.0)

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

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

Author: dependabot[bot]

build.gradle

@@ -9,7 +9,7 @@ buildscript {
 
 plugins {
   id "java"
-  id "org.springframework.boot" version "2.6.7"
+  id "org.springframework.boot" version "2.7.0"
   id "io.spring.dependency-management" version "1.0.11.RELEASE"
   id "idea"
 }