fix: upgrade contentstack from 3.26.3 to 3.27.0

Snyk has created this PR to upgrade contentstack from 3.26.3 to 3.27.0.

See this package in npm:
contentstack

See this project in Snyk:
https://app.snyk.io/org/contentstack-devex/project/82cd50f3-2a11-46a9-9483-334942d9d830?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -29,7 +29,7 @@
   "license": "MIT",
   "dependencies": {
     "@contentstack/utils": "^1.1.3",
-    "contentstack": "^3.24.1",
+    "contentstack": "^3.27.0",
     "gatsby-core-utils": "^3.23.0",
     "gatsby-source-filesystem": "^5.7.0",
     "lodash.clonedeep": "^4.5.0",