Update react and react-reconciler dependencies

Author: Vadim Demedes

package.json

@@ -50,7 +50,7 @@
 		"lodash.throttle": "^4.1.1",
 		"log-update": "^3.0.0",
 		"prop-types": "^15.6.2",
-		"react-reconciler": "^0.20.0",
+		"react-reconciler": "^0.21.0",
 		"scheduler": "^0.15.0",
 		"signal-exit": "^3.0.2",
 		"slice-ansi": "^1.0.0",
@@ -75,7 +75,7 @@
 		"ms": "^2.1.1",
 		"node-pty": "^0.8.1",
 		"p-queue": "^3.0.0",
-		"react": "^16.6.1",
+		"react": "^16.9.0",
 		"sinon": "^7.2.7",
 		"strip-ansi": "^5.2.0",
 		"svg-term-cli": "^2.1.1",