rename iterable run method

refinery_core/src/runner.rs

@@ -371,7 +371,7 @@ impl Runner {
     /// Creates an iterator over pending migrations, applying each before returning
     /// the result from `next()`. If a migration fails, the iterator will return that
     /// result and further calls to `next()` will return `None`.
-    pub fn run_stepwise<C>(
+    pub fn run_iter<C>(
         self,
         connection: &mut C,
     ) -> impl Iterator<Item = Result<Migration, Error>> + '_