build: require golang 1.14

[danwinship]

We noticed in openshift/release#10862 that Dockerfile and Dockerfile.rhel7 used different versions of golang. This updates everything to use 1.14.

Changing go.mod to specify 1.14 required re-running go mod vendor to update vendor/modules.txt to include the ## explicit lines

[danwinship]

/retest

[aojea]

/retest
2 failed tests in gcp OVN

[sig-storage] In-tree Volumes [Driver: azure-disk] [Testpattern: Pre-provisioned PV (ext4)] volumes should allow exec of files on the volume [Suite:openshift/conformance/parallel] [Suite:k8s]
[sig-storage] In-tree Volumes [Driver: gluster] [Testpattern: Dynamic PV (default fs)] volume-expand should not allow expansion of pvcs without AllowVolumeExpansion property [Skipped:ibmcloud] [Suite:openshift/conformance/parallel] [Suite:k8s]

[danwinship]

/retest
/cc @squeed @abhat

[trozet]

/lgtm

[abhat]

/lgtm
/approve

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: abhat, danwinship, trozet

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[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-ci-robot]

@danwinship: The following tests failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
ci/prow/e2e-openstack	84097eb	link	/test e2e-openstack
ci/prow/e2e-ovn-step-registry	84097eb	link	/test e2e-ovn-step-registry
ci/prow/e2e-vsphere	84097eb	link	/test e2e-vsphere

Full PR test history. Your PR dashboard.

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