chore(deps): update dependency dagger/dagger to v0.21.6

[renovate]

This PR contains the following updates:

Package	Update	Change
dagger/dagger	patch	0.21.5 → 0.21.6

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Release Notes

dagger/dagger (dagger/dagger)

v0.21.6

Compare Source

v0.21.6 - 2026-06-10

Added

• Add registryService options to Container.from and Container.publish, allowing containers to pull from and publish to a registry provided by a Dagger Service. This supports local ephemeral registries without starting unrelated services attached to the container. by @​grouville in #​13305

Fixed

• Fix image pulls from single-platform image tags so they can resolve correctly even when the image config reports a different platform than the requested platform. by @​sipsma in #​13409
• Fix an intermittent module introspection/codegen cache error that could report add explicit dependency: dep result <id> missing from cache after implementation-scoped module results were reused across sessions. by @​sipsma in #​13412
• Fix filtered host directory imports when excluded files disappear during sync, preventing layer copy errors for paths that should have been ignored by include/exclude filters. by @​sipsma in #​13414
• Fix Dang v2 modules with private Map fields so map values are restored correctly between calls instead of failing with expected module type, got dang.MapType. by @​vito in #​13421
• Fix .env user defaults for module constructors so passing one constructor argument explicitly no longer drops defaults for the other arguments. by @​marcosnils in #​13424
• Fix a rare cache race that could return released directory snapshots and cause invalid immutable ref errors. by @​sipsma in #​13429

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