Allow disabling the "Name" tag on EC2 instances

Description

What problem are you trying to solve? Currently the tagging controller always sets the "Name" tag on the Karpenter-managed EC2 instances, unless a custom "Name" tag already exists (code).

In my system the well-known "Name" tag causes side-effects in observability (similar to this) and I would like to not have it on those instances at all.

For reference how other projects handle it - Managed Node Groups do not set the Name by default, same with a regular ASG and cluster-autoscaler.

How important is this feature to you? At the moment I do not have a way to workaround the issue, so it's a blocker for our adoption of Karpenter. I believe other organizations may be affected too, as EC2 tags are quite overloaded and "Name" is broadly used and prone for collisions.

The change should be very simple to introduce at the code level in backward compatible way - I'm happy to submit a PR if there is an agreement on introducing it.

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