Update release process and binaries

[sethvargo]

No description provided.

[mdeterman]

So the new latest image (https://console.cloud.google.com/artifacts/docker/berglas/us/berglas/berglas) has broken all the older running webhooks in GKE. So my fix was it pin the version to 0.7.0.

- containerID: containerd://f8fdb88777be1c021d6847bbb7554d67fc09bdc2f95457016afe963de5e457f1 image: us-docker.pkg.dev/berglas/berglas/berglas:latest imageID: us-docker.pkg.dev/berglas/berglas/berglas@sha256:2ffe9d38076a2d72cdbcd11bc23cd38510b78ccf442062a7d558ab0ec0153534 lastState: terminated: containerID: containerd://f8fdb88777be1c021d6847bbb7554d67fc09bdc2f95457016afe963de5e457f1 exitCode: 128 finishedAt: "2022-08-16T21:08:59Z" message: 'failed to create containerd task: OCI runtime create failed: container_linux.go:380: starting container process caused: process_linux.go:545: container init caused: rootfs_linux.go:75: mounting "/var/lib/kubelet/pods/98412115-0fd4-43aa-a7f9-bc9f5a89da5a/volumes/kubernetes.io~empty-dir/berglas-bin" to rootfs at "/berglas/bin/" caused: mount through procfd: open o_path procfd: open /run/containerd/io.containerd.runtime.v2.task/k8s.io/f8fdb88777be1c021d6847bbb7554d67fc09bdc2f95457016afe963de5e457f1/rootfs/berglas/bin: not a directory: unknown' reason: StartError startedAt: "1970-01-01T00:00:00Z"