test/Add application-gitlab-ci.yml for workflow to use

src/main/resources/application.yml

+server.port: 8080
+
+spring:
+  datasource:
+    url: jdbc:mysql://localhost:3306/sparesti
+    username: root
+    password: root
+  jpa:
+    hibernate:
+      ddl-auto: update
+    show-sql: true
+    properties:
+      hibernate:
+        format_sql: true
+    defer-datasource-initialization: true
+  sql:
+    init:
+      mode: always
+      continue-on-error: true
+
+springdoc:
+  swagger-ui:
+    path: /swagger/index.html
+  api-docs:
+    path: /swagger/api-docs