Fix test yaml to fix tests

What does this mr do?

The websocketURL property recently introduced was not yet properly set in the test configurations.

Actions taken to fix bug

Adjust the application.yml file to properly contain a websocketURL property.

src/test/resources/application.yml

@@ -23,8 +23,6 @@ spring:
     active: development
   thymeleaf:
     mode: HTML
-  main:
-    allow-bean-definition-overriding: true
   datasource:
     url: jdbc:h2:mem:testdb
   jpa:
@@ -40,13 +38,9 @@ server:
   servlet:
     session:
       persistent: true
-  session:
-    persistent: true
-
-liquibase:
-
-
 queue:
   gcmApiKey: 12345
   pushPublicKey: 12345
   pushPrivateKey: 12345
+  websocketURL: http://localhost:8081
+