chore: update sponsor image and link

package.json

@@ -2,7 +2,7 @@
   "name": "jp.vuejs.org",
   "private": true,
   "hexo": {
-    "version": "3.8.1"
+    "version": "3.8.0"
   },
   "engines": {
     "node": ">=8.9.0"
@@ -49,4 +49,4 @@
   "lint-staged": {
     "*.md": "textlint --rulesdir ./node_modules/textlint-checker-for-vuejs-jp-docs/rules/textlint-rule-vue-jp-docs -f pretty-error"
   }
-}
+}

themes/vue/_config.yml

@@ -6,10 +6,10 @@ platinum_sponsors_china:
   - url: 'http://www.dcloud.io/?hmsr=vuejsorg&hmpl=&hmcu=&hmkw=&hmci='
     img: dcloud.gif
 special_sponsors:
-  - url: 'https://stdlib.com/'
-    img: stdlib.png
-    name: Standard Library
-    description: 'Build APIs you need in minutes instead of days, for free.'
+  - url: 'https://www.producthunt.com/posts/autocode'
+    img: autocode.svg
+    name: Autocode
+    description: 'Build app-to-app workflows and connect APIs'
 platinum_sponsors:
   - url: >-
       https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1