Update gulp to 5.0.0.

- Set encoding as false to treat content as binary for gulp.src

Signed-off-by: Roland Grunberg <[email protected]>

Author: rgrunber

gulpfile.js

@@ -283,7 +283,7 @@ function download_server_fn(){
 function build_server_fn(){
 	fse.removeSync('./server');
 	cp.execSync(mvnw() + ' -Pserver-distro clean package -Declipse.jdt.ls.skipGradleChecksums', { cwd: server_dir, stdio: [0, 1, 2] });
-	gulp.src(server_dir + '/org.eclipse.jdt.ls.product/distro/*.tar.gz')
+	gulp.src(server_dir + '/org.eclipse.jdt.ls.product/distro/*.tar.gz', { encoding: false })
 		.pipe(decompress())
 		.pipe(gulp.dest('./server'));
 }