message: codemods: preserve file comment
diff: @@ -48,6 +48,9 @@ module.exports = (file, /** @type {import('jscodeshift').API} */ api) => {
  const j = api.jscodeshift;
  const root = j(file.source);
  + // Grab the file comment from the first node in case the import gets removed
  + const firstNodeComment = root.find(j.Program).get('body', 0).node.comments;
  +
  // Find all import statements of @backstage/core
  const imports = root.find(j.ImportDeclaration, {
  source: {
  @@ -82,5 +85,8 @@ module.exports = (file, /** @type {import('jscodeshift').API} */ api) => {
  // And add the new imports. `addImports` will take care of resolving duplicates
  addImports(root, newImportStatements);
  + // Restore the initial file comment in case it got removed
  + root.find(j.Program).get('body', 0).node.comments = firstNodeComment;
  +
  return root.toSource();
  };
  