build(deps): Bump docker/metadata-action from 4.5.0 to 4.6.0
Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](https://github.com/docker/metadata-action/compare/2c0bd771b40637d97bf205cbccdd294a32112176...818d4b7b91585d195f67373fd9cb0332e31a7175)
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updated-dependencies:
- dependency-name: docker/metadata-action
dependency-type: direct:production
update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>