Bump whereabouts version to v0.6.3

[manuelbuil]

Update whereabouts version

Bump to latest whereabouts version in Dockerfile

changed lines [7] of file "/tmp/updatecli/github/rancher/image-build-whereabouts/Dockerfile"

v0.6.3

Release published on the 2024-01-08 15:18:57 +0000 UTC at the url https://github.com/k8snetworkplumbingwg/whereabouts/releases/tag/v0.6.3

## What's Changed
* Add overlapping ranges check to network_name feature by @andreaskaris in https://github.com/k8snetworkplumbingwg/whereabouts/pull/355
* Improve AssignmentError message by @andreaskaris in https://github.com/k8snetworkplumbingwg/whereabouts/pull/366
* IterateForAssignment: Properly handle invalid syntax for exclude range by @andreaskaris in https://github.com/k8snetworkplumbingwg/whereabouts/pull/365
* Denormalize IP name before checking if pod is alive by @nicklesimba in https://github.com/k8snetworkplumbingwg/whereabouts/pull/360
* Rechecking pending Pods (conflict resolved) by @nicklesimba in https://github.com/k8snetworkplumbingwg/whereabouts/pull/375
* update golang.org/x/net to v0.17.0 by @zshi-redhat in https://github.com/k8snetworkplumbingwg/whereabouts/pull/390
* Configurable cron schedule for reconciler by @maiqueb in https://github.com/k8snetworkplumbingwg/whereabouts/pull/398
* Corrects name for configmap in extended config docs by @dougbtv in https://github.com/k8snetworkplumbingwg/whereabouts/pull/402

## New Contributors
* @zshi-redhat made their first contribution in https://github.com/k8snetworkplumbingwg/whereabouts/pull/390

**Full Changelog**: https://github.com/k8snetworkplumbingwg/whereabouts/compare/v0.6.2...v0.6.3

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