Update 03_Adding_dependecies.md

[cecelaitano]

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Adding the version for sqldelight plugin. Without this version the project give errors.

Per gradle documentation: To apply a community plugin from the portal, the fully qualified plugin id must be used: plugins { id("com.jfrog.bintray") version "0.4.1" } https://docs.gradle.org/current/userguide/plugins.html