Add optional csi pull jobs for 1.15

[msau42]

Also update dind version and testgrid annotations in gen-jobs.sh

[msau42]

/assign @pohly

[msau42]

csi prow.sh is being tested kubernetes-csi/csi-driver-host-path#66

[msau42]

cc @chases2

[pohly]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 7ae4c0cf24b988a96cd2f9c1bb565738c5c78c24

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: msau42, pohly

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• config/jobs/kubernetes-csi/OWNERS [msau42]

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[k8s-ci-robot]

@msau42: Updated the job-config configmap in namespace default using the following files:

• key csi-driver-host-path-config.yaml using file config/jobs/kubernetes-csi/csi-driver-host-path/csi-driver-host-path-config.yaml
• key external-attacher-config.yaml using file config/jobs/kubernetes-csi/external-attacher/external-attacher-config.yaml
• key external-provisioner-config.yaml using file config/jobs/kubernetes-csi/external-provisioner/external-provisioner-config.yaml
• key node-driver-registrar-config.yaml using file config/jobs/kubernetes-csi/node-driver-registrar/node-driver-registrar-config.yaml

In response to this:

Also update dind version and testgrid annotations in gen-jobs.sh

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