Signed-off-by: JimmyYang20 <yangjin39@huawei.com>

Current K8S version v1.19.3 has been reported security vulnerabilities
by github Dependabot alerts:
1. https://github.com/advisories/GHSA-f5f7-6478-qm6p
2. https://github.com/advisories/GHSA-mfv7-gq43-w965

The K8S v1.21.4 has been chosen to keep consistent with
KubeEdge(v1.8.2).

Signed-off-by: llhuii <liulinghui@huawei.com>

This upgrade fixes a potential DoS vector bug in gorilla/websocket 1.4.0,
see https://github.com/gorilla/websocket/security/advisories/GHSA-jf24-p9p9-4rjh

Signed-off-by: llhuii <liulinghui@huawei.com>

Signed-off-by: JimmyYang20 <yangjin39@huawei.com>

Signed-off-by: llhuii <liulinghui@huawei.com>

1. basic hack scripts.
2. dataset/model/joint-inference API.
3. commom go files: pkg/version, pkg/util, go.mod, go.sum.
4. client-gen generated files for API.
5. golangci.yml

Signed-off-by: llhuii <liulinghui@huawei.com>