Pin "typedoc" version to 0.14.2 (#655)

Author: laurenzlong

package.json

@@ -1,6 +1,6 @@
 {
  "name": "firebase-functions",
- "version": "3.5.0",
+ "version": "3.6.0",
  "description": "Firebase SDK for Cloud Functions",
  "keywords": [
  "firebase",
@@ -73,7 +73,7 @@
  "tslint-config-prettier": "^1.18.0",
  "tslint-no-unused-expression-chai": "^0.1.4",
  "tslint-plugin-prettier": "^2.0.1",
- "typedoc": "^0.17.1",
+ "typedoc": "0.14.2",
  "typescript": "^3.5.2",
  "yargs": "^15.3.1"
  },