Update snok/container-retention-policy action to v3.1.0

[dependencyupdates]

This PR contains the following updates:

Package	Type	Update	Change
snok/container-retention-policy	action	minor	v3.0.1 → v3.1.0

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Release Notes

snok/container-retention-policy (snok/container-retention-policy)

v3.1.0

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Features

• The action now automatically detects and filters out any package version that belongs to a multi-arch image meant to be retained (#​131). This should resolve issues #​90, #​95, #​97 and more. Thanks to @​sennerholm for starting this work.

Fixes

• Fixed an issue in negative durations causing the action to panic (#​133). Fixes #​128.
• Fixed token parsing related to Github's token format migration (source). Fixes #​132 and #​129.

Misc

• Updated all workflow versions
• Updated dependencies and linters

Full Changelog: snok/container-retention-policy@v3.0.1...v3.1.0

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