build(deps): bump contentful-sdk-core from 7.1.0 to 8.1.1

Bumps [contentful-sdk-core](https://github.com/contentful/contentful-sdk-core) from 7.1.0 to 8.1.1.
- [Release notes](https://github.com/contentful/contentful-sdk-core/releases)
- [Commits](contentful/contentful-sdk-core@v7.1.0...v8.1.1)

---
updated-dependencies:
- dependency-name: contentful-sdk-core
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -29,7 +29,7 @@
     "chalk": "^4.1.2",
     "contentful": "^10.4.0",
     "contentful-collection": "^0.0.4",
-    "contentful-sdk-core": "^7.1.0",
+    "contentful-sdk-core": "^8.1.1",
     "fast-json-patch": "^3.1.1",
     "generate-json-patch": "^1.1.0",
     "listr2": "^7.0.2",