fix: publish workflow

Author: openscript

.changeset/silver-seals-carry.md

@@ -0,0 +1,6 @@
+---
+"@quassel/backend": patch
+"@quassel/frontend": patch
+---
+
+Fix publish workflow

.github/workflows/cd-publish.yaml

@@ -48,7 +48,8 @@ jobs:
           possible_targets=$(pnpm nx show projects -t container --json)
           published_packages='${{ steps.changesets.outputs.publishedPackages }}'
           targets=$(echo $published_packages | jq --argjson possible_targets "$possible_targets" 'map(select(.name == $possible_targets[]))')
-          echo "containers='$targets'" >> $GITHUB_OUTPUT
+          targets_string=$(echo $targets | jq -r tostring)
+          echo "containers='$targets_string'" >> $GITHUB_OUTPUT
 
     outputs:
       published: ${{ steps.changesets.outputs.published }}