Add Spring Boot Http Converter module to sample app

Signed-off-by: onobc <[email protected]>

Author: onobc

spring-pulsar-sample-apps/sample-failover-custom-router/build.gradle

@@ -22,6 +22,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-pulsar'
 	implementation 'org.springframework.boot:spring-boot-starter-actuator'
 	implementation 'org.springframework.boot:spring-boot-jackson2'
+	implementation 'org.springframework.boot:spring-boot-http-converter'
 	implementation 'org.springframework.boot:spring-boot-zipkin'
 	implementation 'io.micrometer:micrometer-tracing-bridge-brave'
 	implementation 'io.zipkin.reporter2:zipkin-reporter-brave'