adding geminidb to doc-exports metadata and zuul job

Reviewed-by: otcbot <otcbot@t-systems.com>
Co-authored-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-committed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>

metadata.yaml

@@ -1721,6 +1721,29 @@ categories:
         - name: docs-database-rw
           permission: write
       repository: docs/gaussdb-nosql
+    - service_title: GeminiDB
+      service_type: geminidb
+      service_category: database
+      service_environment: internal
+      docs:
+        - html_location: docs/geminidb/api-ref
+          rst_location: api-ref/source
+          title: API Reference
+          type: api-ref
+          link: /geminidb/api-ref/
+          pdf_name: geminidb-api-ref
+          hc_location: api/nosql
+        - html_location: docs/geminidb/umn
+          rst_location: umn/source
+          title: User Guide
+          type: umn
+          link: /geminidb/umn/
+          pdf_name: geminidb-umn
+          hc_location: usermanual/nosql
+      teams:
+        - name: docs-database-rw
+          permission: write
+      repository: docs/geminidb
     - service_title: GaussDB (openGauss)
       service_type: opengauss
       service_category: database