feature: improve support of ExportNamespaceSpecifiers

[coderaiser]

 const code = 'export * as fs2 from "fs/promises"';
 const ast = recast.parse(code, parseOptions);

 traverse(ast, {
    ExportNamedDeclaration(path: NodePath) {
        path.replaceWith(template.ast('export * as fs from "xx"') as Node);
        path.stop();
    }
})

recast.print(ast).code;
// returns not valid
export {* as fs} from "xx"

Landed in @putout/recast v1.8.0

[coderaiser]

Merged in #1391