linkerd-bundle release v0.4.0

Changed

• Replace icon and add logo.
• Update dependency giantswarm/linkerd-control-plane-app to v1.0.0
• Update dependency giantswarm/linkerd2-cni-app to v1.0.0
• Update dependency giantswarm/linkerd-viz-app to v1.0.0
• Update dependency giantswarm/linkerd-multicluster-app to v0.11.0
• Update dependency giantswarm/linkerd-multicluster-link-app to v0.11.0