update tfjs-core to 1.7.0 and update other dependencies

Author: justadudewhohacks

examples/examples-browser/package.json

@@ -5,7 +5,7 @@
   "author": "justadudewhohacks",
   "license": "MIT",
   "dependencies": {
-    "express": "^4.16.4",
-    "request": "^2.88.0"
+    "express": "^4.17.1",
+    "request": "^2.88.2"
   }
 }

examples/examples-nodejs/package.json

@@ -2,8 +2,6 @@
   "author": "justadudewhohacks",
   "license": "MIT",
   "dependencies": {
-    "@tensorflow/tfjs-node": "1.5.2",
-    "canvas": "^2.6.0",
     "face-api.js": "../../"
   }
 }