fix: only use tasks fly.toml (#1161)

Author: MaxSchaefer

.github/workflows/preview.yaml

@@ -61,16 +61,18 @@ jobs:
       # --copy-config uses a fly.toml from the current working directory
       # as a base configuration for the new app
       - name: Prepare fly.toml for `fly launch --copy-config`
+        # TODO: remove hardcoded "tasks/" project and replace it with "${{ matrix.project }}/".
+        # If replaced, make sure that https://github.com/helpwave/web/actions/runs/12558728735/job/35013346659?pr=1154 is fixed
         run: |
-          cp ${{ matrix.project }}/fly.toml .
+          cp tasks/fly.toml .
           sed -i "s/\.\.\/Dockerfile/Dockerfile/g" fly.toml
 
       - name: Deploy preview to Fly
         id: deploy
         uses: superfly/fly-pr-review-apps@1.3.0
         with:
           name: pr-${{ github.event.number }}-${{ github.repository_owner }}-${{ github.event.repository.name }}-${{ matrix.project }}
-          config: ${{ matrix.project }}/fly.toml
+          config: fly.toml
 
       - name: Comment preview url to pull-request
         uses: thollander/actions-comment-pull-request@v2