NodeGroup IMDSv2 support

[ryneal]

What problem are you facing?

It is not possible to set IMDSv2 for EC2 instances created by NodeGroup, it currently defaults to IMDSv1.

How could Crossplane help solve your problem?

Requesting parameters added to CRD to configure IMDSv2 on NodeGroup EC2 instances.

[chlunde]

I think this requires launch templates, which is this issue: #338
It should be possible to implement this now since AWS SDK for Go v2 has been updated.

LaunchTemplateData.MetadataOptions.HttpTokens -> required
LaunchTemplateData.MetadataOptions.HttpPutResponseHopLimit -> 1

[github-actions]

Crossplane does not currently have enough maintainers to address every issue and pull request. This issue has been automatically marked as stale because it has had no activity in the last 90 days. It will be closed in 14 days if no further activity occurs. Leaving a comment starting with /fresh will mark this issue as not stale.