New Crowdin Translations (automated) (#39844)

Co-authored-by: GitHub Actions <noreply@github.com>

app/javascript/mastodon/locales/ja.json

@@ -137,7 +137,7 @@
   "account.share": "@{name}さんのプロフィールを共有する",
   "account.show_reblogs": "@{name}さんからのブーストを表示",
   "account.statuses_counter": "{count, plural, other {{counter} 投稿}}",
-  "account.timeline.pinned": "ピン留め済み",
+  "account.timeline.pinned": "ピン済",
   "account.timeline.pinned.view_all": "ピン留め済みの投稿をすべて表示",
   "account.unblock": "@{name}さんのブロックを解除",
   "account.unblock_domain": "{domain}のブロックを解除",