Bump bluebird from 3.5.5 to 3.7.2

Bumps [bluebird](https://github.com/petkaantonov/bluebird) from 3.5.5 to 3.7.2.
- [Release notes](https://github.com/petkaantonov/bluebird/releases)
- [Commits](petkaantonov/bluebird@v3.5.5...v3.7.2)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package.json

@@ -62,7 +62,7 @@
     "@types/react": "^16.0.19",
     "@types/react-dom": "^16.0.2",
     "async": "^0.9.0",
-    "bluebird": "~3.5.3",
+    "bluebird": "~3.7.2",
     "bootstrap": "^3.3.6",
     "core-js": "^2.5.1",
     "expect.js": "~0.3.1",