HHH-8594 - Update to "final" version of jboss-transaction-api_1.2_spec once it is "final"

Author: sebersole

libraries.gradle

@@ -54,7 +54,7 @@ ext {
 
             // javax
             jpa:            'org.hibernate.javax.persistence:hibernate-jpa-2.1-api:1.0.0.Final',
-            jta:            'org.jboss.spec.javax.transaction:jboss-transaction-api_1.2_spec:1.0.0.Alpha1',
+            jta:            'org.jboss.spec.javax.transaction:jboss-transaction-api_1.2_spec:1.0.0.Final',
             validation:     'javax.validation:validation-api:1.1.0.Final',
             jacc:           'org.jboss.spec.javax.security.jacc:jboss-jacc-api_1.4_spec:1.0.2.Final',