[Node SDK] Removes unused bluebird dependency (#571)

Author: gbiernacki-dropbox

sdks/node/package-lock.json

@@ -19,12 +19,10 @@
     "author": "Dropbox Sign",
     "dependencies": {
         "axios": "^1.20.0",
-        "bluebird": "^3.7.2",
         "form-data": "^4.0.6",
         "qs": "^6.16.0"
     },
     "devDependencies": {
-        "@types/bluebird": "^3.5.33",
         "@types/jest": "^29.5.7",
         "@types/json-diff": "^1.0.3",
         "@types/node": "^20.8.10",

sdks/node/package.json

@@ -19,12 +19,10 @@
     "author": "Dropbox Sign",
     "dependencies": {
         "axios": "^1.20.0",
-        "bluebird": "^3.7.2",
         "form-data": "^4.0.6",
         "qs": "^6.16.0"
     },
     "devDependencies": {
-        "@types/bluebird": "^3.5.33",
         "@types/jest": "^29.5.7",
         "@types/json-diff": "^1.0.3",
         "@types/node": "^20.8.10",