v0.6.1

This is a small patch release over v0.6.0.

Notably:

• Relaxed protocol and propagation in v1alpha4 config to have defaulting like v1alpha3 without specifying a value.
• Fixed containerd config patching on clusters with multiple control plane nodes.
• Fixed containerd config patching on slow hosts (do not attempt to restart containerd if it has not started yet).
• Fixed airgapped support for node images (corrected kindnetd image preloading).

This last point brings a new list of node images, fully compatible with v0.6.0, but with kindnetd properly pre-loaded onto them for use in air-gapped / offline environments:

• kindest/node:v1.16.3@sha256:70ce6ce09bee5c34ab14aec2b84d6edb260473a60638b1b095470a3a0f95ebec
• kindest/node:v1.15.6@sha256:18c4ab6b61c991c249d29df778e651f443ac4bcd4e6bdd37e0c83c0d33eaae78
• kindest/node:v1.14.9@sha256:bdd3731588fa3ce8f66c7c22f25351362428964b6bca13048659f68b9e665b72
• kindest/node:v1.13.12@sha256:1fe072c080ee129a2a440956a65925ab3bbd1227cf154e2ade145b8e59a584ad
• kindest/node:v1.12.10@sha256:c5aeca1433e3230e6c1a96b5e1cd79c90139fd80242189b370a3248a05d77118
• kindest/node:v1.11.10@sha256:8ebe805201da0a988ee9bbcc2de2ac0031f9264ac24cf2a598774f1e7b324fe1

The default node image is now kindest/node:v1.16.3@sha256:70ce6ce09bee5c34ab14aec2b84d6edb260473a60638b1b095470a3a0f95ebec