Bump spring.boot.version from 2.5.1 to 2.5.3

Bumps `spring.boot.version` from 2.5.1 to 2.5.3.

Updates `spring-boot-starter-web` from 2.5.1 to 2.5.3
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.1...v2.5.3)

Updates `spring-boot-starter-websocket` from 2.5.1 to 2.5.3
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.1...v2.5.3)

Updates `spring-boot-test-autoconfigure` from 2.5.1 to 2.5.3
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.1...v2.5.3)

Updates `spring-boot-starter-test` from 2.5.1 to 2.5.3
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.1...v2.5.3)

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

Author: dependabot-preview[bot]

pom.xml

@@ -62,7 +62,7 @@
         <asciidoctorj.diagram.version>2.1.2</asciidoctorj.diagram.version>
 
         <spring.test.version>5.3.8</spring.test.version>
-        <spring.boot.version>2.5.1</spring.boot.version>
+        <spring.boot.version>2.5.3</spring.boot.version>
         <spring.boot.starter.celesta.version>2.1.47</spring.boot.starter.celesta.version>
         <celesta.version>7.3.45</celesta.version>
         <jackson.core.version>2.12.4</jackson.core.version>