chore: add STM32RTC dependency

fpistm · fpistm · commit c3575cc8323c · 2023-09-25T16:15:16.000+02:00
Signed-off-by: Frederic Pillon &lt;frederic.pillon@st.com&gt;
diff --git a/library.properties b/library.properties
@@ -7,3 +7,4 @@ paragraph=Provides APIs to communicate with LoRa® and LoraWAN® networks
 category=Communication
 url=https://github.com/stm32duino/STM32LoRaWAN
 architectures=stm32
+depends=STM32duino RTC
