chore(deps): update dependency dagger/dagger to v0.21.6 (#956)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [dagger/dagger](https://redirect.github.com/dagger/dagger) | patch |
`0.21.5` → `0.21.6` |

---

### Release Notes

<details>
<summary>dagger/dagger (dagger/dagger)</summary>

###
[`v0.21.6`](https://redirect.github.com/dagger/dagger/releases/tag/v0.21.6)

[Compare
Source](https://redirect.github.com/dagger/dagger/compare/v0.21.5...v0.21.6)

##### 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 [@&#8203;grouville](https://redirect.github.com/grouville)
in [#&#8203;13305](https://redirect.github.com/dagger/dagger/pull/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
[@&#8203;sipsma](https://redirect.github.com/sipsma) in
[#&#8203;13409](https://redirect.github.com/dagger/dagger/pull/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 [@&#8203;sipsma](https://redirect.github.com/sipsma) in
[#&#8203;13412](https://redirect.github.com/dagger/dagger/pull/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
[@&#8203;sipsma](https://redirect.github.com/sipsma) in
[#&#8203;13414](https://redirect.github.com/dagger/dagger/pull/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
[@&#8203;vito](https://redirect.github.com/vito) in
[#&#8203;13421](https://redirect.github.com/dagger/dagger/pull/13421)
- Fix `.env` user defaults for module constructors so passing one
constructor argument explicitly no longer drops defaults for the other
arguments. by
[@&#8203;marcosnils](https://redirect.github.com/marcosnils) in
[#&#8203;13424](https://redirect.github.com/dagger/dagger/pull/13424)
- Fix a rare cache race that could return released directory snapshots
and cause `invalid immutable ref` errors. by
[@&#8203;sipsma](https://redirect.github.com/sipsma) in
[#&#8203;13429](https://redirect.github.com/dagger/dagger/pull/13429)

##### What to do next?

- Read the [documentation](https://docs.dagger.io)
- Join our [Discord server](https://discord.gg/dagger-io)
- Follow us on [Twitter](https://twitter.com/dagger_io)

</details>

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.github/workflows/ci.yml

@@ -44,7 +44,7 @@ jobs:
       - name: Install Dagger
         env:
           # renovate: datasource=github-tags depName=dagger/dagger versioning=semver
-          DAGGER_VERSION: 0.21.5
+          DAGGER_VERSION: 0.21.6
         run: |
           curl -L https://dl.dagger.io/dagger/install.sh | BIN_DIR=$HOME/.local/bin sh
       - name: Run CI task

.github/workflows/release-please.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Install Dagger
         env:
           # renovate: datasource=github-tags depName=dagger/dagger versioning=semver
-          DAGGER_VERSION: 0.21.5
+          DAGGER_VERSION: 0.21.6
         run: |
           curl -L https://dl.dagger.io/dagger/install.sh | BIN_DIR=$HOME/.local/bin sh
       - name: Create image and manifest

.github/workflows/release-publish.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Install Dagger
         env:
           # renovate: datasource=github-tags depName=dagger/dagger versioning=semver
-          DAGGER_VERSION: 0.21.5
+          DAGGER_VERSION: 0.21.6
         run: |
           curl -L https://dl.dagger.io/dagger/install.sh | BIN_DIR=$HOME/.local/bin sh
       - name: Create image and manifest

Taskfile.yml

@@ -206,7 +206,7 @@ tasks:
       - start-build-network
     vars:
       # renovate: datasource=github-tags depName=dagger/dagger versioning=semver
-      DAGGER_VERSION: 0.21.5
+      DAGGER_VERSION: 0.21.6
       DAGGER_ENGINE_IMAGE: registry.dagger.io/engine:v{{ .DAGGER_VERSION }}
     cmds:
       - >