Bump org.springframework.boot from 2.7.3 to 3.0.0 (#700)

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 2.7.3 to 3.0.0.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.3...v3.0.0)

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

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

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

Author: dependabot[bot]

website/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id 'org.springframework.boot' version '2.7.3'
+    id 'org.springframework.boot' version '3.0.0'
     id 'io.spring.dependency-management' version '1.1.0'
     id "com.google.cloud.tools.jib" version "3.3.0"
     id 'java'