Bump spring.boot.version from 2.5.5 to 2.5.6 (#2386)

Bumps `spring.boot.version` from 2.5.5 to 2.5.6.

Updates `spring-boot-dependencies` from 2.5.5 to 2.5.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.5...v2.5.6)

Updates `spring-boot-starter-security` from 2.5.5 to 2.5.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.5...v2.5.6)

Updates `spring-boot-starter-actuator` from 2.5.5 to 2.5.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.5...v2.5.6)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-security
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-actuator
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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

elide-spring/pom.xml

@@ -40,7 +40,7 @@
 
     <properties>
         <parent.pom.dir>${project.basedir}/../..</parent.pom.dir>
-        <spring.boot.version>2.5.5</spring.boot.version>
+        <spring.boot.version>2.5.6</spring.boot.version>
         <groovy.version>3.0.9</groovy.version>
     </properties>