Update all dependencies Docker tags

This MR contains the following updates:

Package	Type	Update	Change
hadolint/hadolint	ironbank-docker	minor	v2.5.0 -> v2.6.0
hadolint/hadolint		digest	1c7b747 -> a0e2015
hadolint/hadolint		minor	v2.5.0 -> v2.6.0
hadolint/hadolint	stage	minor	v2.5.0 -> v2.6.0

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