chore(deps): update dependency dagger/dagger to v0.20.0

[renovate]

This PR contains the following updates:

Package	Update	Change
dagger/dagger	minor	v0.19.11 → v0.20.0
dagger/dagger	minor	0.19.11 → 0.20.0

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Release Notes

dagger/dagger (dagger/dagger)

v0.20.0

Compare Source

Added

• Add support for individual gc settings in engine local-cache prune by @​sipsma in #​11830
• Add --pretty=logs - like dots, but without the dots by @​vito in #​11847

Fixed

• Fix git SSH socket not found errors when different clients use different SSH auth sock paths on the same repo by @​sipsma in #​11828
• Update internal bbolt db configuration to do less syncing and possibly avoid an upstream bug causing crashes by @​sipsma in #​11850
• Fix nullable function return types incorrectly being skipped for persistent cache by @​sipsma in #​11855
• Fix ONBUILD commands in Dockerfiles not being published when calling directory.dockerbuild().Publish() by @​alexcb in #​11901

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