Fix FuriHalRtc: new datetime lib. version 2.1

application.fam

@@ -6,7 +6,7 @@ App(
     requires=["gui"],
     stack_size=1*1024,
     order=1,
-    fap_version=[2,0],
+    fap_version=[2,1],
     fap_libs=["assets"],
 	fap_icon="icons/icon.png",
     fap_icon_assets="icons",