Bump falafel from 1.0.1 to 2.2.5

Bumps [falafel](https://github.com/substack/node-falafel) from 1.0.1 to 2.2.5.
- [Release notes](https://github.com/substack/node-falafel/releases)
- [Commits](https://github.com/substack/node-falafel/commits)

---
updated-dependencies:
- dependency-name: falafel
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -26,7 +26,7 @@
 	},
 	"homepage": "https://help.branch.io/developers-hub/docs/web-sdk-overview",
 	"devDependencies": {
-		"falafel": "1.0.1",
+		"falafel": "2.2.5",
 		"grunt": "^0.4.5",
 		"grunt-contrib-connect": "~0.9.0",
 		"grunt-contrib-watch": "~0.6.1",