feat(python): add delete unverified parameter (#1542)

PR fixes #1527

python/src/table.rs

@@ -248,6 +248,7 @@ impl Table {
     pub fn optimize(
         self_: PyRef<'_, Self>,
         cleanup_since_ms: Option<u64>,
+        delete_unverified: Option<bool>,
     ) -> PyResult<Bound<'_, PyAny>> {
         let inner = self_.inner_ref()?.clone();
         let older_than = if let Some(ms) = cleanup_since_ms {
@@ -275,7 +276,7 @@ impl Table {
             let prune_stats = inner
                 .optimize(OptimizeAction::Prune {
                     older_than,
-                    delete_unverified: None,
+                    delete_unverified,
                     error_if_tagged_old_versions: None,
                 })
                 .await