fix: Revert "fix: escape github usernames" - it's not necessary

This reverts commit a961cf7.

main.js

@@ -60,15 +60,11 @@ function toMarkdown(changelogsByComponent) {
  .map(([component, changelogs]) => {
  return `### ${component}
 
-- ${changelogs.map(escapeGitHubUsername).join("\n- ")}`;
+- ${changelogs.join("\n- ")}`;
  })
  .join("\n\n");
 }
 
-function escapeGitHubUsername(string) {
- return string.replace(/@([\w-]+)/g, "[@$1](https://github.com/$1)");
-}
-
 function yamlEscape(string) {
  return string.replace(/"/g, '""');
 }