Update ghcr.io/loft-sh/vcluster-oss Docker tag to v0.26.0

Signed-off-by: Renovate Bot <tech+renovate@vshn.ch>

Author: vshn-renovate

class/defaults.yml

@@ -19,7 +19,7 @@ parameters:
       syncer:
         registry: ghcr.io
         image: loft-sh/vcluster-oss
-        tag: "0.24.1"
+        tag: "0.26.0"
       kubectl:
         registry: docker.io
         image: bitnami/kubectl