Make SnapshotPackagerService aware of Incremental Snapshots (#19254)

Add a field to SnapshotPackage that is an enum for SnapshotType, so archive_snapshot_package() will do the right thing.

Fixes #19166

core/src/validator.rs

@@ -13,7 +13,7 @@ use {
         serve_repair::ServeRepair,
         serve_repair_service::ServeRepairService,
         sigverify,
-        snapshot_packager_service::{PendingSnapshotPackage, SnapshotPackagerService},
+        snapshot_packager_service::SnapshotPackagerService,
         tower_storage::TowerStorage,
         tpu::{Tpu, DEFAULT_TPU_COALESCE_MS},
         tvu::{Sockets, Tvu, TvuConfig},
@@ -65,6 +65,7 @@ use {
         hardened_unpack::{open_genesis_config, MAX_GENESIS_ARCHIVE_UNPACKED_SIZE},
         snapshot_archive_info::SnapshotArchiveInfoGetter,
         snapshot_config::SnapshotConfig,
+        snapshot_package::PendingSnapshotPackage,
         snapshot_utils,
     },
     solana_sdk::{