use new kaniko release

[gazal-k]

Summary

Use newer release of kaniko

Steps to reproduce the behavior

Expected behavior

jx uses a newer version of kaniko. Some relevant fixes I'm specifically after:
GoogleContainerTools/kaniko#9
GoogleContainerTools/kaniko#826

Actual behavior

jx uses a gcr.io/kaniko-project/executor:debug-9912ccbf8d22bbafbf971124600fbb0b13b9cbd6 which is apparently close to gcr.io/kaniko-project/executor:debug-v0.10.0

Jx version

The output of jx version is:

jxl version

NAME               VERSION
jxl                0.0.158
Kubernetes cluster v1.14.9-eks-502bfb
kubectl            v1.17.3
helm client        3.1.2
git                2.25.1
Operating System   "Fedora release 31 (Thirty One)"

Jenkins type

• Serverless Jenkins X Pipelines (Tekton + Lighthouse)
• Classic Jenkins

Kubernetes cluster

EKS created using eksctl

Operating system / Environment

Fedora release 31 (Thirty One)