⬆️ gradle: Bump spring-boot-dependencies in /ihub-bom (#40)

Bumps [spring-boot-dependencies](https://github.com/spring-projects/spring-boot) from 2.5.7 to 2.6.1.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.7...v2.6.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: henry <[email protected]>

ihub-bom/build.gradle

@@ -37,7 +37,7 @@ dependencies {
         platform('com.google.guava:guava-bom:31.0.1-jre'),
         platform('com.google.inject:guice-bom:5.0.1'),
         platform('com.github.xiaoymin:knife4j-dependencies:3.0.3'),
-        platform('org.springframework.boot:spring-boot-dependencies:2.5.7'),
+        platform('org.springframework.boot:spring-boot-dependencies:2.6.1'),
         platform('org.apache.kylin:kylin:4.0.0')
     // 配置组件版本
     constraints {