fix: make kotlin example output

[thibault-martinez]

Prints

thibault@Mac ~/i/iota-rust-sdk (sdk-bindings) [2]> make kotlin-example coin_balances

Running Kotlin example "coin_balances"
Calculating task graph as configuration cache cannot be reused because JVM has changed.

instead of

thibault@Mac ~/i/iota-rust-sdk (sdk-bindings)> make kotlin-example coin_balances

Running Kotlin example "coin_balancesStarting a Gradle Daemon (subsequent builds will be faster)
Calculating task graph as configuration cache cannot be reused because JVM has changed.