ci: bump docker/metadata-action from 5 to 6

[dependabot]

Bumps docker/metadata-action from 5 to 6.

Release notes

Sourced from docker/metadata-action's releases.

v6.0.0

• Node 24 as default runtime (requires Actions Runner v2.327.1 or later) by @​crazy-max in docker/metadata-action#605
• List inputs now preserve # inside values while still supporting full-line # comments by @​crazy-max in docker/metadata-action#607
• Switch to ESM and update config/test wiring by @​crazy-max in docker/metadata-action#602
• Bump lodash from 4.17.21 to 4.17.23 in docker/metadata-action#588
• Bump @​actions/core from 1.11.1 to 3.0.0 in docker/metadata-action#599
• Bump @​actions/github from 6.0.1 to 9.0.0 in docker/metadata-action#597
• Bump @​docker/actions-toolkit from 0.68.0 to 0.79.0 in docker/metadata-action#604
• Bump @​isaacs/brace-expansion from 5.0.0 to 5.0.1 in docker/metadata-action#600
• Bump semver from 7.7.3 to 7.7.4 in docker/metadata-action#603

Full Changelog: docker/metadata-action@v5.10.0...v6.0.0

v5.10.0

• Bump @​docker/actions-toolkit from 0.66.0 to 0.68.0 in docker/metadata-action#559 docker/metadata-action#569
• Bump js-yaml from 3.14.1 to 3.14.2 in docker/metadata-action#564

Full Changelog: docker/metadata-action@v5.9.0...v5.10.0

v5.9.0

• Add tag-names output to return tag names without image base name by @​crazy-max in docker/metadata-action#553
• Bump @​babel/runtime-corejs3 from 7.14.7 to 7.28.2 in docker/metadata-action#539
• Bump @​docker/actions-toolkit from 0.62.1 to 0.66.0 in docker/metadata-action#555
• Bump brace-expansion from 1.1.11 to 1.1.12 in docker/metadata-action#540
• Bump csv-parse from 5.6.0 to 6.1.0 in docker/metadata-action#532
• Bump semver from 7.7.2 to 7.7.3 in in docker/metadata-action#554
• Bump tmp from 0.2.3 to 0.2.5 in docker/metadata-action#541

Full Changelog: docker/metadata-action@v5.8.0...v5.9.0

v5.8.0

• New is_not_default_branch global expression by @​crazy-max in docker/metadata-action#535
• Allow to match part of the git tag or value for semver/pep440 types by @​crazy-max in docker/metadata-action#536 docker/metadata-action#537
• Bump @​actions/github from 6.0.0 to 6.0.1 in docker/metadata-action#523
• Bump @​docker/actions-toolkit from 0.56.0 to 0.62.1 in docker/metadata-action#526
• Bump form-data from 2.5.1 to 2.5.5 in docker/metadata-action#533
• Bump moment-timezone from 0.5.47 to 0.6.0 in docker/metadata-action#525
• Bump semver from 7.7.1 to 7.7.2 in docker/metadata-action#524

Full Changelog: docker/metadata-action@v5.7.0...v5.8.0

v5.7.0

• Global expressions support for labels and annotations by @​crazy-max in docker/metadata-action#489
• Support disabling outputs as environment variables by @​omus in docker/metadata-action#497
• Bump @​docker/actions-toolkit from 0.44.0 to 0.56.0 in docker/metadata-action#507 docker/metadata-action#509
• Bump csv-parse from 5.5.6 to 5.6.0 in docker/metadata-action#482
• Bump moment-timezone from 0.5.46 to 0.5.47 in docker/metadata-action#501
• Bump semver from 7.6.3 to 7.7.1 in docker/metadata-action#504

Full Changelog: docker/metadata-action@v5.6.1...v5.7.0

... (truncated)

Commits

• dc80280 Merge pull request #696 from docker/dependabot/npm_and_yarn/docker/actions-to...
• 2b9fe83 [dependabot skip] chore: update generated content
• 8128ce3 chore(deps): Bump @​docker/actions-toolkit from 0.91.0 to 0.92.0
• 1d1c895 Merge pull request #695 from docker/dependabot/npm_and_yarn/semver-7.8.5
• 7f0c2dd Merge pull request #694 from docker/dependabot/npm_and_yarn/sigstore-4.1.1
• 025f8c5 [dependabot skip] chore: update generated content
• e98d63c chore(deps): Bump semver from 7.8.1 to 7.8.5
• 37d9379 chore(deps): Bump sigstore from 4.1.0 to 4.1.1
• a1b8072 Merge pull request #690 from docker/dependabot/npm_and_yarn/sigstore/core-3.2.1
• e0e3381 [dependabot skip] chore: update generated content
• Additional commits viewable in compare view

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[sylvesterdamgaard]

Superseded by d8e9e40, which took every bump in this queue in one pass — CI green across both Go legs, golangci-lint clean, and the Docker image built and run on alpine 3.24. Doing them individually meant fourteen CI runs and three of these already conflicted with work that landed the same morning.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.