ci(deps): update ethereum dependencies (#1582)

| datasource | package | from  | to             |
| ---------- | ------- | ----- | -------------- |
| helm       | nimbus  | 0.6.5 | 0.6.6-canary.1 |

Co-authored-by: graphops-renovate[bot] <135047802+graphops-renovate[bot]@users.noreply.github.com>

Author: graphops-renovate[bot]

ethereum/helmfile.yaml

@@ -185,7 +185,7 @@ templates:
     version: {{ .Values | get "nimbus" | get "chartVersion" }}
     {{- end }}
     {{- if (not (or ( .Values | get "nimbus" dict | get "chartVersion" false ) ( .Values | get "nimbus" dict | get "chartUrl" false ) )) }}
-    version: "0.6.5"
+    version: "0.6.6-canary.1"
     {{- end }}
 
   lighthouse:

src/schemas/ethereum.cue

@@ -140,7 +140,7 @@ package LaunchpadNamespaces
 					"app.launchpad.graphops.xyz/scalingIndex": "{{ $deploymentIndex }}"
 				}
 				feature: #features.#nimbus
-				_template: {version: "0.6.5"}
+				_template: {version: "0.6.6-canary.1"}
 			}
 
 			lighthouse: {