Bump spring-boot-dependencies from 2.1.3.RELEASE to 2.1.4.RELEASE

Bumps [spring-boot-dependencies](https://github.com/spring-projects/spring-boot) from 2.1.3.RELEASE to 2.1.4.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.1.3.RELEASE...v2.1.4.RELEASE)

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

pom.xml

@@ -57,7 +57,7 @@
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <slf4j.version>1.7.26</slf4j.version>
         <spring.version>5.1.6.RELEASE</spring.version>
-        <spring-boot.version>2.1.3.RELEASE</spring-boot.version>
+        <spring-boot.version>2.1.4.RELEASE</spring-boot.version>
         <junit-platform.version>1.4.2</junit-platform.version>
         <junit-jupiter.version>5.4.1</junit-jupiter.version>
         <opentracing.version>0.32.0</opentracing.version>