Fixes a problem where leaked spans didn't end up in Zipkin (#1145)

This moves to latest Brave which fixes a regression. Note: I don't think
the version here in Sleuth had the regression or not, but I know 5.3.3
did not.

Author: adriancole

pom.xml

@@ -247,7 +247,7 @@
 		<spring-cloud-stream.version>Fishtown.BUILD-SNAPSHOT</spring-cloud-stream.version>
 		<spring-cloud-netflix.version>2.1.0.BUILD-SNAPSHOT</spring-cloud-netflix.version>
 		<spring-cloud-openfeign.version>2.1.0.BUILD-SNAPSHOT</spring-cloud-openfeign.version>
-		<brave.version>5.4.4</brave.version>
+		<brave.version>5.5.1</brave.version>
 		<spring-security-boot-autoconfigure.version>2.0.4.RELEASE</spring-security-boot-autoconfigure.version>
 	</properties>
 

spring-cloud-sleuth-dependencies/pom.xml

@@ -30,7 +30,7 @@
 	<name>spring-cloud-sleuth-dependencies</name>
 	<description>Spring Cloud Sleuth Dependencies</description>
 	<properties>
-		<brave.opentracing.version>0.33.5</brave.opentracing.version>
+		<brave.opentracing.version>0.33.7</brave.opentracing.version>
 	</properties>
 	<dependencyManagement>
 		<dependencies>