chore(deps): bump spring-boot-dependencies (#43)

Bumps [spring-boot-dependencies](https://github.com/spring-projects/spring-boot) from 2.2.3.RELEASE to 2.2.4.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.2.3.RELEASE...v2.2.4.RELEASE)

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

Author: dependabot-preview[bot]

pom.xml

@@ -18,7 +18,7 @@
     <properties>
         <version.zeebe>0.22.0</version.zeebe>
         <version.zeebe.spring>0.22.0</version.zeebe.spring>
-        <version.spring.boot>2.2.3.RELEASE</version.spring.boot>
+        <version.spring.boot>2.2.4.RELEASE</version.spring.boot>
 
         <!-- release parent settings -->
         <version.java>11</version.java>