chore(deps): update dependency dagger/dagger to v0.20.4 (#225)

| datasource  | package       | from    | to      |
| ----------- | ------------- | ------- | ------- |
| github-tags | dagger/dagger | v0.20.3 | v0.20.4 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/continuous-integration.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Install Dagger
         env:
           # renovate: datasource=github-tags depName=dagger/dagger versioning=semver
-          DAGGER_VERSION: 0.20.3
+          DAGGER_VERSION: 0.20.4
         run: |
           curl -L https://dl.dagger.io/dagger/install.sh | BIN_DIR=$HOME/.local/bin sh
       - name: Run CI task