feat(java): add cryptography video resource

* Update cryptography@_wV2VQq6MIY1rVHjK8pfu.md

* Update src/data/roadmaps/java/content/cryptography@_wV2VQq6MIY1rVHjK8pfu.md

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Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

src/data/roadmaps/java/content/cryptography@_wV2VQq6MIY1rVHjK8pfu.md

@@ -5,4 +5,5 @@ Cryptography is the practice and study of techniques for secure communication in
 Visit the following resources to learn more:
 
 - [@article@Java Cryptography Tutorial](https://jenkov.com/tutorials/java-cryptography/index.html)
+- [@video@Cryptography 101 for Java developers](https://www.youtube.com/watch?v=itmNhVckTPc)