chore: promote jmdeal to maintainer

[jmdeal]

Fixes #N/A

Description
Opening a request to promote myself from karpenter-reviewer to karpenter-maintainer. I've been an active contributor / reviewer both here and in the AWS provider for the past ~1.5 years and have been a reviewer since this project was donated to kubernetes-sigs.

Contributions: https://github.com/kubernetes-sigs/karpenter/pulls?page=1&q=is%3Apr+author%3Ajmdeal+is%3Aclosed
Reviews: https://github.com/kubernetes-sigs/karpenter/pulls?q=is%3Apr+assignee%3Ajmdeal+is%3Aclosed

How was this change tested?
N/A

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

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: jmdeal
Once this PR has been reviewed and has the lgtm label, please assign gjtempleton for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[coveralls]

Pull Request Test Coverage Report for Build 13710923658

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 4 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.03%) to 81.582%

---

Files with Coverage Reduction	New Missed Lines	%
pkg/controllers/provisioning/scheduling/topologydomaingroup.go	4	86.21%

Totals
Change from base Build 13683176482:	-0.03%
Covered Lines:	9590
Relevant Lines:	11755

---

💛 - Coveralls