Add object-persistor module and upgrade deps to latest minor release

services/docstore/package.json

@@ -19,40 +19,46 @@
     "format:fix": "node_modules/.bin/prettier-eslint $PWD'/**/*.js' --write"
   },
   "dependencies": {
+    "@overleaf/object-persistor": "git+https://github.com/overleaf/object-persistor.git",
     "async": "^2.6.3",
     "body-parser": "^1.19.0",
     "express": "^4.17.1",
-    "logger-sharelatex": "^2.1.0",
-    "metrics-sharelatex": "^2.6.2",
+    "logger-sharelatex": "^2.1.1",
+    "metrics-sharelatex": "^2.7.0",
     "mongojs": "3.1.0",
     "settings-sharelatex": "^1.1.0",
-    "underscore": "~1.9.2"
+    "streamifier": "^0.1.1",
+    "tiny-async-pool": "^1.1.0",
+    "underscore": "~1.10.2"
   },
   "devDependencies": {
+    "@google-cloud/storage": "^5.1.2",
     "babel-eslint": "^10.1.0",
-    "bunyan": "~1.8.12",
+    "bunyan": "~1.8.14",
     "chai": "~4.2.0",
+    "chai-as-promised": "^7.1.1",
     "eslint": "^6.8.0",
-    "eslint-config-prettier": "^6.10.0",
-    "eslint-config-standard": "^14.1.0",
+    "eslint-config-prettier": "^6.11.0",
+    "eslint-config-standard": "^14.1.1",
     "eslint-config-standard-jsx": "^8.1.0",
     "eslint-config-standard-react": "^9.2.0",
-    "eslint-plugin-chai-expect": "^2.1.0",
-    "eslint-plugin-chai-friendly": "^0.5.0",
-    "eslint-plugin-import": "^2.20.1",
-    "eslint-plugin-jsx-a11y": "^6.2.3",
+    "eslint-plugin-chai-expect": "^2.2.0",
+    "eslint-plugin-chai-friendly": "^0.6.0",
+    "eslint-plugin-import": "^2.22.0",
+    "eslint-plugin-jsx-a11y": "^6.3.1",
     "eslint-plugin-mocha": "^6.3.0",
-    "eslint-plugin-node": "^11.0.0",
-    "eslint-plugin-prettier": "^3.1.2",
+    "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-prettier": "^3.1.4",
     "eslint-plugin-promise": "^4.2.1",
-    "eslint-plugin-react": "^7.19.0",
+    "eslint-plugin-react": "^7.20.3",
     "eslint-plugin-standard": "^4.0.1",
-    "mocha": "^7.1.1",
-    "prettier": "^2.0.0",
+    "mocha": "^7.2.0",
+    "prettier": "^2.0.5",
     "prettier-eslint-cli": "^5.0.0",
     "request": "~2.88.2",
-    "sandboxed-module": "~2.0.3",
-    "sinon": "~9.0.1"
+    "sandboxed-module": "~2.0.4",
+    "sinon": "~9.0.2",
+    "sinon-chai": "^3.5.0"
   },
   "engines": {
     "node": "~6.14.1"