chore: changes java api port to 3001

lesson_26/README.md

@@ -39,7 +39,7 @@ We are continuing to build atop the foundation of our library app. For this assi
 You can run the server using the usual `./gradlew run` command from the `api/java` directory. If you want to test that the server is running correctly, you can use `curl` like so:
 
 ```bash
-curl http://localhost:5000/items | json_pp
+curl http://localhost:3001/items | json_pp
 ```
 
 Alternatively, you can test the API using the tool [Postman][postman-link]. I recommend installing this tool to make it easier to test things.

lesson_26/api/java/api_app/src/main/resources/application.yml

@@ -1,5 +1,5 @@
 server:
-  port: 5000
+  port: 3001
 spring:
   jpa:
     database-platform: org.hibernate.community.dialect.SQLiteDialect