chore: Remove jackfrancis from karpenter-reviewers

[jonathan-innis]

Fixes #N/A

Description

Removing @jackfrancis from reviewers since he's become less directly involved in maintaining the project

Brandon shows as < 10 contributions in the last year: https://k8s.devstats.cncf.io/d/13/developer-activity-counts-by-repository-group?orgId=1&var-period_name=Last%20year&var-metric=contributions&var-repogroup_name=All&var-repo_name=kubernetes-sigs%2Fkarpenter&var-country_name=All

How was this change tested?

make presubmit

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

[k8s-ci-robot]

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[coveralls]

Pull Request Test Coverage Report for Build 13772345229

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 4 unchanged lines in 1 file lost coverage.
• Overall coverage remained the same at 81.61%

---

Files with Coverage Reduction	New Missed Lines	%
pkg/controllers/disruption/consolidation.go	4	85.55%

Totals
Change from base Build 13728019186:	0.0%
Covered Lines:	9599
Relevant Lines:	11762

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💛 - Coveralls

[jackfrancis]

Thanks @jonathan-innis and karpenter team for continuing to move this forward at impressive speed! Looking forward to more intersections via SIG Autoscaling in the near future and would love to contribute here in the future if cycles allow!