onboarding: remove 97 orphaned pubkeys

[sepia-lab-onboarding-app]

These pubkey files have no matching lab_users (or exempted) entry in ceph/ceph-sepia-secrets and are proposed for removal:

• ssh/aantony.pub
• ssh/aarsharm.pub
• ssh/aderumier.pub
• ssh/adeza.pub
• ssh/ahallur.pub
• ssh/alayani.pub
• ssh/amsyedha.pub
• ssh/aramteke.pub
• ssh/aravindranath.pub
• ssh/cdommeti.pub
• ssh/chaithra.pub
• ssh/chunmei.pub
• ssh/dahorak.pub
• ssh/debbarba.pub
• ssh/dfuller.pub
• ssh/dgurtner.pub
• ssh/dpentako.pub
• ssh/dpivonka.pub
• ssh/fultonj.pub
• ssh/gaurava.pub
• ssh/gmeno.pub
• ssh/gpatta.pub
• ssh/gsitlani.pub
• ssh/harishacharya.pub
• ssh/hchebrol.pub
• ssh/hgurav.pub
• ssh/hmaheswa.pub
• ssh/hnallurv.pub
• ssh/ivo.pub
• ssh/jbainbri.pub
• ssh/jdexter.pub
• ssh/jeder.pub
• ssh/jiffin.pub
• ssh/jlopez.pub
• ssh/jmario.pub
• ssh/john.pub
• ssh/kanagaraj.pub
• ssh/kdreyer.pub
• ssh/kenf.pub
• ssh/kramdoss.pub
• ssh/liu-chunmei.pub
• ssh/manising.pub
• ssh/markk.pub
• ssh/mbroz.pub
• ssh/mgowri.pub
• ssh/mkasturi.pub
• ssh/mmurthy.pub
• ssh/mobisht.pub
• ssh/msaini.pub
• ssh/nberry.pub
• ssh/nchilaka.pub
• ssh/ngangadh.pub
• ssh/nicowang.pub
• ssh/nthomas.pub
• ssh/pbalogh.pub
• ssh/pbyregow.pub
• ssh/pgovindr.pub
• ssh/pnataraj.pub
• ssh/prprakas.pub
• ssh/prsurve.pub
• ssh/racpatel.pub
• ssh/raprasad.pub
• ssh/rkamath.pub
• ssh/rkhambad.pub
• ssh/rlepaksh.pub
• ssh/rperiyas.pub
• ssh/rpratap.pub
• ssh/saarti.pub
• ssh/sage.pub
• ssh/sagrawal.pub
• ssh/sandeep.pub
• ssh/shucjain.pub
• ssh/shylesh.pub
• ssh/smustard.pub
• ssh/sohsingh.pub
• ssh/sshreeka.pub
• ssh/sumr.pub
• ssh/suriya.pub
• ssh/swagner.pub
• ssh/syeshwan.pub
• ssh/tmuthami.pub
• ssh/tunguyen.pub
• ssh/ukurundw.pub
• ssh/vasishta.pub
• ssh/vasu.pub
• ssh/vavuthu.pub
• ssh/veravula.pub
• ssh/vidushi.pub
• ssh/vikumar.pub
• ssh/vips.pub
• ssh/vivk.pub
• ssh/vpapnoi.pub
• ssh/vpoliset.pub
• ssh/vumrao.pub
• ssh/yli.pub
• ssh/ymane.pub
• ssh/ypersky.pub

Opened by the sepia user-onboarding reconciler. Review carefully before merging — merge is the deletion.