chore: drop validation webhooks and enable conversion webhooks

[jmdeal]

Fixes #N/A

Description
This PR does the following:

• Updates RBAC permissions for conversion webhooks
• Passes conversion webhooks to the operator
• Removes validation and defaulting webhooks for the EC2NodeClass
• Adds a hack script to add the conversion stanza to CRDs
• Removes the webhook.enabled setting from the helm chart.

How was this change tested?
In-Progress

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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🔍 Latest deploy log	https://app.netlify.com/sites/karpenter-docs-prod/deploys/668f7a9dd9f9ac0008e6f328

[coveralls]

Pull Request Test Coverage Report for Build 9886557329

Details

• 0 of 2 (0.0%) changed or added relevant lines in 1 file are covered.
• 68 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.2%) to 78.776%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/webhooks/webhooks.go	0	2	0.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/apis/v1/zz_generated.deepcopy.go	68	0.0%

Totals
Change from base Build 9886167627:	-0.2%
Covered Lines:	5612
Relevant Lines:	7124

---

💛 - Coveralls

[jmdeal]

/karpenter snapshot

[github-actions]

Snapshot successfully published to oci://021119463062.dkr.ecr.us-east-1.amazonaws.com/karpenter/snapshot/karpenter:0-d129d403454434b1329657aca337747e35dd0a70.
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-d129d403454434b1329657aca337747e35dd0a70" --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

[jmdeal]

/karpenter snapshot

[github-actions]

Snapshot successfully published to oci://021119463062.dkr.ecr.us-east-1.amazonaws.com/karpenter/snapshot/karpenter:0-2bd36ac95318b6d22d3622e094ec95cf2c9f5a0d.
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 "0-2bd36ac95318b6d22d3622e094ec95cf2c9f5a0d" --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

[jmdeal]

/karpenter snapshot

[github-actions]

Snapshot successfully published to oci://021119463062.dkr.ecr.us-east-1.amazonaws.com/karpenter/snapshot/karpenter:0-d82337f29651ab677325210564ac895834fc1184.
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-d82337f29651ab677325210564ac895834fc1184" --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

[njtran]

LGTM