[BigDL 2.0][PPML] Integration Tests

[glorysdj]

• [x] Kubernetes deploy job
• [x] Kubernetes undeploy job
• [ ] graphene version determine [pre-1.2-rc1(k8s not ready), 1.2-rc1(with k8s), gramine(with k8s)]
• [x] docker image build/deploy job
• [ ] trusted-big-data-ml graphene test job
• [ ] trusted-big-data-ml occlum test job
• [ ] trusted-realtime-ml graphene test job
• [ ] trusted-realtime-ml occlum test job