chore(drivers): Fix link to repository

This patch updates the link to the helm repository for AMD GPU drivers
after AMD changed Github organisation names.

infrastructure/drivers/amd-gpu.yaml

@@ -6,7 +6,7 @@ metadata:
   namespace: drivers-system
 spec:
   interval: 30m
-  url: https://radeonopencompute.github.io/k8s-device-plugin/
+  url: https://rocm.github.io/k8s-device-plugin/
 ---
 apiVersion: helm.toolkit.fluxcd.io/v2beta2
 kind: HelmRelease