[huawei-csi-plugin] schema v1 manifest not supported by trivy

[hairmare]

Affected chart
huawei-csi-plugin

Describe the bug
Artifacthub tries to do security scanning on the contaiers referenced in our charts and is reporting that it cannot scan parts of the huawei-csi-plugin multiple times per day.

To Reproduce
Steps to reproduce the behavior:

1. Regularly check Artifacthub mail

Expected behavior
The plugin should be delivered in a "scannable by artifacthub" way and not spam us with multiple mails about failed scans per day.

Logs

error scanning image quay.io/k8scsi/csi-attacher:v1.2.1: schema v1 manifest not supported by trivy (package huawei-csi-plugin:0.3.1)

Affected version
all of them

Values
none

Environment
none

Additional context
The image that fails to scan is 2 years old and has since been superseded by both 2.x and 3.x versions of csi-attacher.

The recomended Kubernetes versions for csi-attacher 1.2.1 are 1.14 and 1.15 which are both very much out of date.

Huawei has been advised to update the csi-attacher in this issue: Huawei/eSDK_K8S_Plugin#3. A Helm chart of their own has been requested here: Huawei/eSDK_K8S_Plugin#16 wth some progress being made in Huawei/eSDK_K8S_Plugin#35

Personally i think we should scrap support for this helm chart ASAP. If anything the chart has added reasons for upstream to not push their own efforts further. If need be we can assist anyone using this in migrating the chart to their own helm charts repository or, if upstream wants it, we can contribute it to the efforts being made in their repo.

[hairmare]

followup: artifacthub/hub#1882