install gulp to process code

node_modules/gulp/index.mjs

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+import gulp from "./index.js";
+
+// These are bound to the gulp instance in our CommonJS file
+// so it is okay to reassign them to export
+export const watch = gulp.watch;
+export const task = gulp.task;
+export const series = gulp.series;
+export const parallel = gulp.parallel;
+export const registry = gulp.registry;
+export const tree = gulp.tree;
+export const lastRun = gulp.lastRun;
+export const src = gulp.src;
+export const dest = gulp.dest;
+export const symlink = gulp.symlink;
+
+export default gulp;