Bump springBootVersion from 2.4.3 to 2.4.4
Bump springBootVersion from 2.4.3 to 2.4.4

Bumps `springBootVersion` from 2.4.3 to 2.4.4.

Updates `spring-boot-gradle-plugin` from 2.4.3 to 2.4.4
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.4.3...v2.4.4)

Updates `spring-boot-starter-web` from 2.4.3 to 2.4.4
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.4.3...v2.4.4)

Updates `spring-boot-starter-thymeleaf` from 2.4.3 to 2.4.4
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.4.3...v2.4.4)

Updates `spring-boot-starter-test` from 2.4.3 to 2.4.4
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.4.3...v2.4.4)

Updates `spring-boot-configuration-processor` from 2.4.3 to 2.4.4
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.4.3...v2.4.4)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
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