Replaced webpack with rollup; (#4596)

Co-authored-by: Jay <jasonsaayman@gmail.com>

package.json

@@ -31,6 +31,11 @@
   },
   "homepage": "https://axios-http.com",
   "devDependencies": {
+    "@rollup/plugin-babel": "^5.3.0",
+    "@rollup/plugin-commonjs": "^15.1.0",
+    "@rollup/plugin-json": "^4.1.0",
+    "@rollup/plugin-multi-entry": "^4.0.0",
+    "@rollup/plugin-node-resolve": "^9.0.0",
     "abortcontroller-polyfill": "^1.7.3",
     "coveralls": "^3.1.1",
     "dtslint": "^4.2.1",
@@ -44,6 +49,7 @@
     "grunt-eslint": "^24.0.0",
     "grunt-karma": "^4.0.2",
     "grunt-mocha-test": "^0.13.3",
+    "grunt-shell": "^3.0.1",
     "grunt-webpack": "^5.0.0",
     "istanbul-instrumenter-loader": "^3.0.1",
     "jasmine-core": "^2.4.1",
@@ -60,6 +66,8 @@
     "load-grunt-tasks": "^5.1.0",
     "minimist": "^1.2.6",
     "mocha": "^8.2.1",
+    "rollup": "^2.67.0",
+    "rollup-plugin-terser": "^7.0.2",
     "sinon": "^4.5.0",
     "terser-webpack-plugin": "^4.2.3",
     "typescript": "^4.6.3",