fix(deps): update dependency @hello.nrfcloud.com/nrfcloud-api-helpers to v6.0.91 (#395)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -109,7 +109,7 @@
     "@bifravst/timestream-helpers": "6.0.3",
     "@hello.nrfcloud.com/certificate-helpers": "1.0.0",
     "@hello.nrfcloud.com/lambda-helpers": "2.0.56",
-    "@hello.nrfcloud.com/nrfcloud-api-helpers": "6.0.90",
+    "@hello.nrfcloud.com/nrfcloud-api-helpers": "6.0.91",
     "@hello.nrfcloud.com/proto": "15.3.29",
     "@hello.nrfcloud.com/proto-map": "16.1.30",
     "@middy/core": "5.5.1",