Replace dependency rollup-plugin-node-resolve with @rollup/plugin-node-resolve ^6.0.0

Author: renovate[bot]

REPOS/async/package-lock.json

@@ -56,7 +56,7 @@
     "nyc": "^14.1.1",
     "rimraf": "^2.5.0",
     "rollup": "^0.63.4",
-    "rollup-plugin-node-resolve": "^2.0.0",
+    "@rollup/plugin-node-resolve": "^6.0.0",
     "rollup-plugin-npm": "^2.0.0",
     "rsvp": "^3.0.18",
     "semver": "^5.5.0",

REPOS/async/package.json

@@ -87,7 +87,7 @@
     "rollup": "^1.19.4",
     "rollup-plugin-babel": "^4.0.1",
     "rollup-plugin-commonjs": "^9.3.4",
-    "rollup-plugin-node-resolve": "^2.1.1",
+    "@rollup/plugin-node-resolve": "^6.0.0",
     "rollup-plugin-prettier": "^0.6.0",
     "rollup-plugin-replace": "^2.2.0",
     "rollup-plugin-strip-banner": "^0.2.0",