docs: align mkdocs nav label with generated GitLab Orbit title

Author: zereight

mkdocs.yml

@@ -110,7 +110,7 @@ nav:
       - Search: tools/search.md
       - Dependency Proxy: tools/dependency-proxy.md
       - Vulnerabilities: tools/vulnerabilities.md
-      - Orbit: tools/orbit.md
+      - GitLab Orbit: tools/orbit.md
       - Snippets: tools/snippets.md
       - Meta & GraphQL: tools/meta.md
   - Reference: