chore: modify config test

Signed-off-by: Guangyu Xu <GuangXu0602@gmail.com>

Author: billie60

config/config_test.go

@@ -31,6 +31,10 @@ func TestLoadSnapshotterTOMLConfig(t *testing.T) {
 			EnableStargz:         false,
 			EnableReferrerDetect: false,
 		},
+		PrefetchControllerConfig: PrefetchControllerConfig{
+			Enable:         true,
+			PrefetchConfig: "http://localhost:1323/api/v1/prefetch/download",
+		},
 		CleanupOnClose: false,
 		SystemControllerConfig: SystemControllerConfig{
 			Enable:  true,

misc/snapshotter/config.toml

@@ -10,7 +10,7 @@ daemon_mode = "dedicated"
 cleanup_on_close = false
 
 [prefetch]
-enable = false
+enable = true
 get_prefetch_endpoint = "http://localhost:1323/api/v1/prefetch/download"
 
 [system]
@@ -136,4 +136,4 @@ max_concurrent_proc = 0
 # - "image_block": generate a raw block disk image with tarfs for an image
 # - "layer_block_with_verity": generate a raw block disk image with tarfs for a layer with dm-verity info
 # - "image_block_with_verity": generate a raw block disk image with tarfs for an image with dm-verity info
-export_mode = ""
+export_mode = ""