chore: Add CreateError when launch template isn't found

[jonathan-innis]

Fixes #N/A

Description

Add CreateError when launch template isn't found so that we ensure that all failures that occur from launchInstance return error reasons

How was this change tested?

make presubmit

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[netlify]

✅ Deploy Preview for karpenter-docs-prod canceled.

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[jonathan-innis]

/karpenter snapshot

[netlify]

✅ Deploy Preview for karpenter-docs-prod canceled.

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[engedaam]

LGTM 🚀

[github-actions]

Snapshot successfully published to oci://021119463062.dkr.ecr.us-east-1.amazonaws.com/karpenter/snapshot/karpenter:0-84f22b05d7616d37f47d909c0b79e57f015cda1a.
To install you must login to the ECR repo with an AWS account:

aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin 021119463062.dkr.ecr.us-east-1.amazonaws.com

helm upgrade --install karpenter oci://021119463062.dkr.ecr.us-east-1.amazonaws.com/karpenter/snapshot/karpenter --version "0-84f22b05d7616d37f47d909c0b79e57f015cda1a" --namespace "kube-system" --create-namespace \
  --set "settings.clusterName=${CLUSTER_NAME}" \
  --set "settings.interruptionQueue=${CLUSTER_NAME}" \
  --set controller.resources.requests.cpu=1 \
  --set controller.resources.requests.memory=1Gi \
  --set controller.resources.limits.cpu=1 \
  --set controller.resources.limits.memory=1Gi \
  --wait

[coveralls]

Pull Request Test Coverage Report for Build 13211168798

Details

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 64.766%

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Totals
Change from base Build 13209852205:	0.0%
Covered Lines:	5803
Relevant Lines:	8960

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💛 - Coveralls