GaussDB NoSQL disable from landing page

Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Boka, Ladislav <ladislav.boka@t-systems.com>
Co-committed-by: Boka, Ladislav <ladislav.boka@t-systems.com>

otc_metadata/data/documents/gaussdb_nosql-api-ref.yaml

@@ -1,4 +1,5 @@
 ---
+environment: internal
 hc_location: api/nosql
 html_location: docs/gaussdb_nosql/api-ref
 link: /gaussdb-nosql/api-ref/

otc_metadata/data/documents/gaussdb_nosql-umn.yaml

@@ -1,4 +1,5 @@
 ---
+environment: internal
 hc_location: usermanual/nosql
 html_location: docs/gaussdb_nosql/umn
 link: /gaussdb-nosql/umn/

otc_metadata/data/services/gaussdb_nosql.yaml

@@ -1,5 +1,5 @@
 ---
-environment: public
+environment: internal
 repositories:
 - environment: internal
   repo: docs/gaussdb-nosql