change update cells column param from Table to List (#11691)

# Description

This PR fixes `update cells` parameter `--columns`/`-c` so that it takes
a `SyntaxShape::List` instead of `SyntaxShape::Table`.

closes #11689

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crates/nu-cmd-extra/src/extra/filters/update_cells.rs

@@ -26,7 +26,7 @@ impl Command for UpdateCells {
             )
             .named(
                 "columns",
-                SyntaxShape::Table(vec![]),
+                SyntaxShape::List(Box::new(SyntaxShape::Any)),
                 "list of columns to update",
                 Some('c'),
             )