Update dependency registry.opensource.zalan.do/acid/postgres-operator to v1.8.2

This MR contains the following updates:

Package	Type	Update	Change
registry.opensource.zalan.do/acid/postgres-operator	ironbank-docker	patch	v1.8.1 -> v1.8.2
registry.opensource.zalan.do/acid/postgres-operator		patch	v1.8.1 -> v1.8.2
registry.opensource.zalan.do/acid/postgres-operator	stage	patch	v1.8.1 -> v1.8.2

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