Update application.yml from gateway in order to use Docker Keycloak instance

Author: singuuu

api/src/test/java/com/singu/keycloak/microservices/api/ApiApplicationTests.java

@@ -1,12 +1,9 @@
 server:
   port: 9100
 
-api:
-  adminPassword: admin
-
 spring:
   security:
     oauth2:
       resourceserver:
         jwt:
-          issuer-uri: http://172.17.0.3:8080/realms/spring-api
+          issuer-uri: http://<keycloak-ip>:8080/realms/spring-api