fix: keep moment-timezone in packages/tools until timezone.ts is migrated

The timezone.ts rewrite is in the complex PR. This branch must keep
moment-timezone to avoid build failure.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ggazzo

packages/tools/package.json

@@ -17,6 +17,9 @@
 		"testunit": "jest",
 		"typecheck": "tsc -p tsconfig.json --noEmit"
 	},
+	"dependencies": {
+		"moment-timezone": "^0.5.48"
+	},
 	"devDependencies": {
 		"@rocket.chat/jest-presets": "workspace:~",
 		"@rocket.chat/tsconfig": "workspace:*",