Update 103-functions.md (#6685)

Fix Typo

src/data/roadmaps/java/content/100-java-fundamentals/103-functions.md

@@ -18,5 +18,5 @@ Visit the following resources to learn more:
 - [@article@Methods/Functions in Java.](https://www.javatpoint.com/method-in-java)
 - [@article@Learn Functions/Methods in Java](https://www.w3schools.com/java/java_methods.asp)
 - [@video@Functions / Methods in Java](https://www.youtube.com/watch?v=vvanI8NRlSI)
-- [@video@Lambda functions](https://www.w3schools.com/java/java_lambda.asp)
-- [@video@Passing functions as a variable](https://northcoder.com/post/passing-java-functions-in-variables/)
+- [@article@Lambda functions](https://www.w3schools.com/java/java_lambda.asp)
+- [@article@Passing functions as a variable](https://northcoder.com/post/passing-java-functions-in-variables/)