Bump narayana-jta from 5.12.5.Final to 5.12.6.Final (#185)

Bumps narayana-jta from 5.12.5.Final to 5.12.6.Final.

---
updated-dependencies:
- dependency-name: org.jboss.narayana.jta:narayana-jta
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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pom.xml

@@ -271,7 +271,7 @@
     <dependency>
       <groupId>org.jboss.narayana.jta</groupId>
       <artifactId>narayana-jta</artifactId>
-      <version>5.12.5.Final</version>
+      <version>5.12.6.Final</version>
       <scope>test</scope>
     </dependency>
     <dependency>