Upgrade dependencies

Author: kitten

package.json

@@ -50,36 +50,34 @@
     }
   },
   "peerDependencies": {
-    "react": "^16.8.0",
-    "react-is": "^16.8.0"
+    "react": "^16.8.0"
   },
-  "dependencies": {},
   "devDependencies": {
-    "@ampproject/rollup-plugin-closure-compiler": "^0.25.2",
-    "@babel/core": "^7.9.0",
-    "@babel/plugin-transform-flow-strip-types": "^7.9.0",
-    "@babel/plugin-transform-object-assign": "^7.8.3",
-    "@babel/preset-env": "^7.9.5",
-    "@babel/preset-flow": "^7.9.0",
-    "@babel/preset-react": "^7.9.4",
+    "@ampproject/rollup-plugin-closure-compiler": "^0.26.0",
+    "@babel/core": "^7.12.3",
+    "@babel/plugin-transform-flow-strip-types": "^7.12.1",
+    "@babel/plugin-transform-object-assign": "^7.12.1",
+    "@babel/preset-env": "^7.12.1",
+    "@babel/preset-flow": "^7.12.1",
+    "@babel/preset-react": "^7.12.5",
     "@rollup/plugin-buble": "^0.21.3",
-    "@rollup/plugin-commonjs": "^11.1.0",
-    "@rollup/plugin-node-resolve": "^7.1.3",
-    "babel-plugin-closure-elimination": "^1.3.0",
+    "@rollup/plugin-commonjs": "^16.0.0",
+    "@rollup/plugin-node-resolve": "^10.0.0",
+    "babel-plugin-closure-elimination": "^1.3.2",
     "babel-plugin-transform-async-to-promises": "^0.8.15",
     "codecov": "^3.6.5",
-    "flow-bin": "^0.122.0",
-    "husky": "^4.2.5",
-    "jest": "^25.3.0",
-    "lint-staged": "^10.1.3",
+    "flow-bin": "0.122.0",
+    "husky": "^4.3.0",
+    "jest": "^26.6.3",
+    "lint-staged": "^10.5.1",
     "npm-run-all": "^4.1.5",
-    "prettier": "^2.0.4",
-    "react": "^16.13.1",
-    "react-dom": "^16.13.1",
-    "react-is": "^16.13.1",
-    "rollup": "^2.6.1",
+    "prettier": "^2.1.2",
+    "react": "^17.0.1",
+    "react-dom": "^17.0.1",
+    "react-is": "^17.0.1",
+    "rollup": "^2.33.1",
     "rollup-plugin-babel": "^4.4.0",
     "rollup-plugin-replace": "^2.2.0",
-    "rollup-plugin-terser": "^5.3.0"
+    "rollup-plugin-terser": "^7.0.2"
   }
 }

rollup.config.js

@@ -29,7 +29,6 @@ const externalTest = (id) => {
 }
 
 const terserPretty = terser({
-  sourcemap: true,
   warnings: true,
   ecma: 5,
   keep_fnames: true,
@@ -56,7 +55,6 @@ const terserPretty = terser({
 })
 
 const terserMinified = terser({
-  sourcemap: true,
   warnings: true,
   ecma: 5,
   ie8: false,