fix github action dir

.github/workflows/prepare/action.yml

@@ -1,23 +0,0 @@
-name: Build & Upload
-inputs:
-  id:
-    description: artifact name
-    required: true
-  cmd:
-    description: command to run
-    required: true
-  out:
-    description: path to output file
-    required: true
-runs:
-  using: composite
-  steps:
-    - name: compile
-      run: ${{ inputs.cmd }}
-    - name: archive
-      run: tar -cvf ${{ out }}.tar ${{ out }}
-    - name: upload
-      uses: actions/upload-artifact@v4
-      with:
-        name: ${{ id }}
-        path: ${{ out }}.tar