fix: packages/create-react-app/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-BRACEEXPANSION-15789759

Author: snyk-io[bot]

packages/create-react-app/package.json

@@ -38,7 +38,7 @@
     "prompts": "2.4.0",
     "semver": "7.3.2",
     "tar-pack": "3.4.1",
-    "tmp": "0.2.1",
+    "tmp": "0.2.3",
     "validate-npm-package-name": "3.0.0"
   },
   "devDependencies": {