Update rollup and other build dependencies

Author: pravi

package-lock.json

@@ -1,8 +1,8 @@
 const rollup = require('rollup');
 const typescript = require('rollup-plugin-typescript2');
-const commonjs = require('rollup-plugin-commonjs');
+const commonjs = require('@rollup/plugin-commonjs');
 const json = require('@rollup/plugin-json');
-const resolve = require('rollup-plugin-node-resolve');
+const resolve = require('@rollup/plugin-node-resolve').nodeResolve;
 const terser = require('rollup-plugin-terser').terser;
 const banner = require('./banner');
 const path = require('path');
@@ -85,4 +85,4 @@ async function build() {
     await buildBrowser();
 }
 
-build();
+build();

packages/less/build/rollup.js

@@ -56,8 +56,10 @@
 	"devDependencies": {
 		"@less/test-data": "^4.0.0",
 		"@less/test-import-module": "^4.0.0",
+		"@rollup/plugin-commonjs": "^17.0.0",
 		"@rollup/plugin-json": "^4.1.0",
-		"@typescript-eslint/eslint-plugin": "^3.3.0",
+		"@rollup/plugin-node-resolve": "^11.0.0",
+        "@typescript-eslint/eslint-plugin": "^3.3.0",
 		"@typescript-eslint/parser": "^3.3.0",
 		"benny": "^3.6.12",
 		"bootstrap-less-port": "0.3.0",
@@ -88,16 +90,14 @@
 		"promise": "^7.1.1",
 		"read-glob": "^3.0.0",
 		"resolve": "^1.17.0",
-		"rollup": "^1.17.0",
-		"rollup-plugin-commonjs": "^10.0.1",
-		"rollup-plugin-node-resolve": "^5.2.0",
+		"rollup": "^2.34.1",
 		"rollup-plugin-terser": "^5.1.1",
-		"rollup-plugin-typescript2": "^0.24.3",
+		"rollup-plugin-typescript2": "^0.29.0",
 		"semver": "^6.3.0",
 		"shx": "^0.3.2",
 		"time-grunt": "^1.3.0",
 		"ts-node": "^8.4.1",
-		"typescript": "^3.6.3",
+		"typescript": "^4.1.3",
 		"uikit": "2.27.4"
 	},
 	"keywords": [