[commands] Add requirements parameter to Commands.idle() (#5774)

wpilibNewCommands/src/main/native/include/frc2/command/Commands.h

@@ -33,10 +33,11 @@ CommandPtr None();
 /**
  * Constructs a command that does nothing until interrupted.
  *
+ * @param requirements Subsystems to require
  * @return the command
  */
 [[nodiscard]]
-CommandPtr Idle();
+CommandPtr Idle(Requirements requirements = {});
 
 // Action Commands