fix(blog): apply baseUrl to relative image in blog authors (#10440)

Co-authored-by: sebastien <lorber.sebastien@gmail.com>

packages/docusaurus-plugin-content-blog/src/index.ts

@@ -271,6 +271,7 @@ export default async function pluginContentBlog(
           routeBasePath,
           authorsBasePath,
         ]),
+        baseUrl,
       });
       checkAuthorsMapPermalinkCollisions(authorsMap);