Update ghcr.io/fluxcd/kustomize-controller Docker tag to v0.18.2

This MR contains the following updates:

Package	Type	Update	Change
ghcr.io/fluxcd/kustomize-controller	ironbank-docker	patch	v0.18.1 -> v0.18.2
ghcr.io/fluxcd/kustomize-controller		patch	v0.18.1 -> v0.18.2
ghcr.io/fluxcd/kustomize-controller	stage	patch	v0.18.1 -> v0.18.2

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Release Notes

fluxcd/kustomize-controller

v0.18.2

Compare Source

CHANGELOG

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