Update gems

This MR contains the following updates:

Package	Type	Update	Change
bundler	ironbank-rubygems	patch	2.3.11 -> 2.3.12
fluent-plugin-kubernetes_metadata_filter	ironbank-rubygems	minor	2.9.5 -> 2.10.0
fluent-plugin-kubernetes_metadata_filter		minor	~> 2.9.0 -> ~> 2.10.0
public_suffix	ironbank-rubygems	patch	4.0.6 -> 4.0.7

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Configuration

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This MR has been generated by Renovate Bot.