Bump activemq.version from 6.1.4 to 6.1.5

Bumps `activemq.version` from 6.1.4 to 6.1.5.

Updates `org.apache.activemq:activemq-broker` from 6.1.4 to 6.1.5
- [Commits](apache/activemq@activemq-6.1.4...activemq-6.1.5)

Updates `org.apache.activemq.tooling:activemq-maven-plugin` from 6.1.4 to 6.1.5

---
updated-dependencies:
- dependency-name: org.apache.activemq:activemq-broker
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: org.apache.activemq.tooling:activemq-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -501,7 +501,7 @@
         <jaxws.api.version>4.0.2</jaxws.api.version>
         <maven-plugin-tools.version>3.15.1</maven-plugin-tools.version>
         <maven-archetype.version>3.3.1</maven-archetype.version>
-        <activemq.version>6.1.4</activemq.version>
+        <activemq.version>6.1.5</activemq.version>
         <surefire.version>3.5.2</surefire.version>
         <!-- This variable is used in some Xdocs and is substituted using Velocity. Note that
              we can't use the project.version variable directly because of the dot. See