添加 Liteyuki Python 包发布操作，包含必要的输入和输出配置

action.yml

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+name: 'liteyuki-pypi'
+description: 'Publish your Python package to Liteyuki Registry'
+author: 'LiteyukiStudio'
+
+inputs:
+  owner:
+    description: 'The owner of the repository.'
+    required: true
+  username:
+    description: 'Your Gitea username for authentication.'
+    required: true
+  token:
+    description: 'Your Gitea token for authentication.'
+    required: true
+  endpoint:
+    description: 'The endpoint of the Gitea server.'
+    required: false
+    default: 'https://git.liteyuki.icu/api/packages/{owner}/pypi'
+
+outputs:
+  result:
+    description: 'action-demo'
+
+runs:
+  using: node16
+  main: 'dist/index.js'
+

package.json

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+{
+  "name": "liteyuki-pypi",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}