Update package versions (#1447)

Author: dbcp1

posenet/demo/package.json

@@ -10,9 +10,9 @@
   },
   "dependencies": {
     "@tensorflow-models/posenet": "file:../dist",
-    "@tensorflow/tfjs-backend-webgl": "^4.19.0",
-    "@tensorflow/tfjs-converter": "^4.19.0",
-    "@tensorflow/tfjs-core": "^4.19.0",
+    "@tensorflow/tfjs-backend-webgl": "^4.20.0",
+    "@tensorflow/tfjs-converter": "^4.20.0",
+    "@tensorflow/tfjs-core": "^4.20.0",
     "stats.js": "^0.17.0"
   },
   "scripts": {

posenet/package.json

@@ -13,13 +13,13 @@
     "url": "https://github.com/tensorflow/tfjs-models.git"
   },
   "peerDependencies": {
-    "@tensorflow/tfjs-converter": "^4.19.0",
-    "@tensorflow/tfjs-core": "^4.19.0"
+    "@tensorflow/tfjs-converter": "^4.20.0",
+    "@tensorflow/tfjs-core": "^4.20.0"
   },
   "devDependencies": {
-    "@tensorflow/tfjs-converter": "^4.19.0",
-    "@tensorflow/tfjs-core": "^4.19.0",
-    "@tensorflow/tfjs-backend-cpu": "^4.19.0",
+    "@tensorflow/tfjs-converter": "^4.20.0",
+    "@tensorflow/tfjs-core": "^4.20.0",
+    "@tensorflow/tfjs-backend-cpu": "^4.20.0",
     "@types/jasmine": "~3.3.15",
     "babel-core": "^6.26.0",
     "babel-plugin-transform-runtime": "~6.23.0",