fix(core.gbapp): Updating package versions.

package.json

@@ -13,7 +13,7 @@
     "Dário Vieira <dario.junior3@gmail.com>"
   ],
   "engines": {
-    "node": "=10.15.2"
+    "node": "=12.0.0"
   },
   "license": "AGPL-3.0",
   "preferGlobal": true,
@@ -49,7 +49,7 @@
   },
   "dependencies": {
     "@azure/ms-rest-js": "2.0.4",
-    "@discordjs/opus": "^0.1.0",
+    "@discordjs/opus": "0.1.0",
     "@microsoft/microsoft-graph-client": "2.0.0",
     "@types/validator": "12.0.1",
     "adal-node": "0.2.1",
@@ -74,19 +74,19 @@
     "exceljs": "3.5.0",
     "express": "4.17.1",
     "express-remove-route": "1.0.0",
-    "ffmpeg-static": "^4.1.0",
-    "google-libphonenumber": "^3.2.8",
+    "ffmpeg-static": "4.1.0",
+    "google-libphonenumber": "3.2.8",
     "js-beautify": "1.10.2",
     "marked": "0.8.0",
-    "microsoft-cognitiveservices-speech-sdk": "^1.11.0",
+    "microsoft-cognitiveservices-speech-sdk": "1.11.0",
     "mocha": "6.2.2",
     "ms-rest-azure": "3.0.0",
     "nexmo": "2.5.2",
     "ngrok": "3.2.7",
     "npm": "6.13.4",
     "opn": "6.0.0",
     "pragmatismo-io-framework": "1.0.20",
-    "prism-media": "^1.2.1",
+    "prism-media": "1.2.1",
     "public-ip": "4.0.0",
     "reflect-metadata": "0.1.13",
     "request-promise": "4.2.5",