Fix environment file path.

action.yml

@@ -99,7 +99,7 @@ runs:
       with:
         activate-environment: comfyui
         auto-activate-base: false
-        environment-file: environments/${{ inputs.os }}-environment.yml
+        environment-file: ${{ github.action_path }}/environments/${{ inputs.os }}-environment.yml
         use-only-tar-bz2: true
 
     - name: '[Unix] Install Comfy-CLI'