e2e,upgrade: fall back to current examples if needed

[rhrazdil]

Signed-off-by: Radim Hrazdil rhrazdil@redhat.com

Is this a BUG FIX or a FEATURE ?:

Uncomment only one, leave it on its own line:

/kind bug /kind enhancement

What this PR does / why we need it: When testing upgrade, example yamls from previous tag are downloaded. This causes an issue when adding a new example yaml, because it doesn't yet exist in previous tag.

This change falls back to current doc/examples path if an example yaml is not found in previous tag. This allows to smoothly add new example yamls.

Special notes for your reviewer:

Release note:

NONE

[kubevirt-bot]

@rhrazdil: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kubernetes-nmstate-e2e-upgrade-k8s	9b46ab16157c0eccb92157d80438b020a3b5cb5d	link	false	/test pull-kubernetes-nmstate-e2e-upgrade-k8s

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[kubevirt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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