fix: just use an emptyDir

Let vector decide how to handle the directory.

plugins/scheduler-k3s/templates/helm-config/vector.yaml

@@ -28,18 +28,8 @@ readinessProbe:
     path: /health
     port: api
 
-extraVolumes:
-  - name: vector-state
-    hostPath:
-      path: /var/lib/vector
-      type: DirectoryOrCreate
-
-extraVolumeMounts:
-  - name: vector-state
-    mountPath: /var/lib/vector-state
-
 customConfig:
-  data_dir: /var/lib/vector-state
+  data_dir: /vector-data-dir
 
   api:
     enabled: true