Use the channel from my ocm-ramen-sample fork

My ocm-ramen-sample fork use `csi-hostpath-sc` storage class, so we can
test busybox with volsync without installing cephfs.

To make replication work, you need to manually add an annotation to the
busybox-sample namespace on both clusters:

    annotations:
      volsync.backube/privileged-movers: "true"

With the annotation we can run basic-test:
- deploy works
- undeploy works
- failover partly works, moving the application to the destination
  cluster, but clean up never finish
- relocate partly works, moving the application to the destination
  cluster, but clean up never finish.

Signed-off-by: Nir Soffer <nsoffer@redhat.com>

ramenctl/ramenctl/resources/samples-channel.yaml

@@ -13,4 +13,4 @@ metadata:
   namespace: ramen-samples
 spec:
   type: GitHub
-  pathname: https://github.com/RamenDR/ocm-ramen-samples.git
+  pathname: https://github.com/nirs/ocm-ramen-samples.git

test/basic-test/config.yaml

@@ -7,7 +7,7 @@
 # directory somewhere.
 tmp_dir: /tmp/ramen-test/basic-test
 
-samples_url: https://github.com/ramendr/ocm-ramen-samples
+samples_url: https://github.com/nirs/ocm-ramen-samples
 samples_dir: /tmp/ramen-test/basic-test/ocm-ramen-samples
 
 hub: hub