Bump spring-boot.version from 2.3.3.RELEASE to 2.3.4.RELEASE (#279)

Bumps `spring-boot.version` from 2.3.3.RELEASE to 2.3.4.RELEASE.

Updates `spring-boot-dependencies` from 2.3.3.RELEASE to 2.3.4.RELEASE
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.3.3.RELEASE...v2.3.4.RELEASE)

Updates `spring-boot-maven-plugin` from 2.3.3.RELEASE to 2.3.4.RELEASE
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.3.3.RELEASE...v2.3.4.RELEASE)

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

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

Author: dependabot[bot]

pom.xml

@@ -14,7 +14,7 @@
 
     <aws-java-sdk.version>1.11.873</aws-java-sdk.version>
     <zipkin-reporter.version>2.15.2</zipkin-reporter.version>
-    <spring-boot.version>2.3.3.RELEASE</spring-boot.version>
+    <spring-boot.version>2.3.4.RELEASE</spring-boot.version>
     <testcontainers.version>1.14.3</testcontainers.version>
     <jackson.version>2.10.2</jackson.version>
     <amazon-kinesis-producer.version>0.14.1</amazon-kinesis-producer.version>