fix: release_version字段长度问题

db/migrate/20260115083448_change_column_to_version_releases.rb

@@ -0,0 +1,7 @@
+class ChangeColumnToVersionReleases < ActiveRecord::Migration[5.2]
+  def change
+    change_column :version_releases, :tarball_url, :text
+    change_column :version_releases, :zipball_url, :text
+    change_column :version_releases, :url, :text
+  end
+end