[Release 1.0.0 part 1] bump helm chart to version to 1.0.0 and appVersion to v1.0.0

[maelvls]

This commit belongs to the release process for v1.0.0.

I've removed an instruction from the release process as I've noticed that the tag is now commented out in the values.yaml file:

image:
  # -- Overrides the image tag whose default is the chart appVersion
  # tag: "v0.0.0"

[wallrj]

Looks good

$ helm package deploy/charts/venafi-kubernetes-agent/
Successfully packaged chart and saved it to: /home/richard/projects/venafi/venafi-kubernetes-agent/venafi-kubernetes-agent-1.0.0.tgz

$ helm inspect chart venafi-kubernetes-agent-1.0.0.tgz
apiVersion: v2
appVersion: v1.0.0
description: The Venafi Kubernetes Agent connects your Kubernetes or Openshift cluster
  to the Venafi Control Plane.
name: venafi-kubernetes-agent
type: application
version: 1.0.0

$ helm template venafi-kubernetes-agent-1.0.0.tgz  | grep -C5 "image:"
            capabilities:
              drop:
              - ALL
            readOnlyRootFilesystem: true
            runAsNonRoot: true
          image: "registry.venafi.cloud/venafi-agent/venafi-agent:v1.0.0"
          imagePullPolicy: IfNotPresent
          args:
            - "agent"
            - "-c"
            - "/etc/venafi/agent/config/config.yaml"

[wallrj]

I had to double check that the Docker image URL was correct, because it's venafi-agent rather than venafi-kubernetes-agent.
In future, we ought to update the Docker image name for consistency:

• https://docs.venafi.cloud/vaas/k8s-components/c-agent-releases/#latest-release

[maelvls]

Thanks for testing the Helm chart. I forgot to do that before opening this PR...

[maelvls]

I've continued the release process but got stuck at:

$ helm push venafi-kubernetes-agent-${VERSION}.tgz oci://eu.gcr.io/jetstack-secure-enterprise/charts
Successfully packaged chart and saved it to: /Users/mvalais/code/jetstack/jetstack-secure/venafi-kubernetes-agent-1.0.0.tgz
Error: failed to authorize: failed to fetch oauth token: unexpected status from GET request to https://eu.gcr.io/v2/token?scope=repository%3Ajetstack-secure-enterprise%2Fcharts%2Fvenafi-kubernetes-agent%3Apull&scope=repository%3Ajetstack-secure-enterprise%2Fcharts%2Fvenafi-kubernetes-agent%3Apull%2Cpush&service=eu.gcr.io: 403 Forbidden

I've noticed that I'm an owner of the jetstack-secure-enterprise project, so I should be able to push this OCI Helm chart...

Have you ever seen this? @wallrj

Update: I think I forgot to re-login using docker login.

[maelvls]

I was able to push the OCI helm chart, but first I had to run:

docker login -u oauth2accesstoken --password-stdin eu.gcr.io < <(gcloud auth application-default print-access-token)

I'll add that to the release instructions.