🔀 Npm package updates (#554)

* Update package.json
* Replace-In-File & change-case update fixes
* tslint to 6.1.2
* nodemailer 6.4.6, googeaplis 50.0.0
* tslint  7.0.1
* package updates

packages/nodes-base/package.json

@@ -269,7 +269,7 @@
         "@types/moment-timezone": "^0.5.12",
         "@types/mongodb": "^3.5.4",
         "@types/node": "^10.10.1",
-        "@types/nodemailer": "^4.6.5",
+        "@types/nodemailer": "^6.4.0",
         "@types/redis": "^2.8.11",
         "@types/request-promise-native": "~1.0.15",
         "@types/uuid": "^3.4.6",
@@ -291,7 +291,7 @@
         "formidable": "^1.2.1",
         "glob-promise": "^3.4.0",
         "gm": "^1.23.1",
-        "googleapis": "~46.0.0",
+        "googleapis": "~50.0.0",
         "imap-simple": "^4.3.0",
         "lodash.get": "^4.4.2",
         "lodash.set": "^4.3.2",
@@ -301,7 +301,7 @@
         "mongodb": "^3.5.5",
         "mysql2": "^2.0.1",
         "n8n-core": "~0.33.0",
-        "nodemailer": "^5.1.1",
+        "nodemailer": "^6.4.6",
         "pdf-parse": "^1.1.1",
         "pg-promise": "^9.0.3",
         "redis": "^2.8.0",