chore: update csi-attacher v4.11.0-20260401

longhorn/longhorn-12878

Signed-off-by: Chin-Ya Huang <chin-ya.huang@suse.com>

Author: c3y1huang

versions.json

@@ -61,7 +61,7 @@
   },
   "csi-attacher": {
     "repo": "https://github.com/kubernetes-csi/external-attacher.git",
-    "tag": "v4.11.0"
+    "tag": "v4.11.0-20260401"
   },
   "csi-provisioner": {
     "repo": "https://github.com/kubernetes-csi/external-provisioner.git",