docs: remove orphan deployment/openshift entry from mint.json

[ayoubil]

Fixes #5217.

The sidebar in docs/mint.json has two OpenShift deployment entries:

1. deployment/kubernetes/openshift — exists at docs/deployment/kubernetes/openshift.mdx (correct)
2. deployment/openshift — no corresponding mdx file, so Mintlify falls back to the Introduction page

That orphan is exactly the broken redirect reported in #5217: clicking OpenShift in the sidebar lands on Introduction.

Change

One line removed from docs/mint.json:

                 "deployment/kubernetes/openshift"
               ]
             },
-            "deployment/openshift",
             "deployment/ecs"

Verification

• The legitimate page (deployment/kubernetes/openshift.mdx) is still wired up under the Kubernetes group; clicking OpenShift now lands on the actual content instead of redirecting.
• docs/mint.json parses as valid JSON.
• Same pattern as [📃 Docs]: broken documentation link for Microsoft Planner provider #5402 (Microsoft Planner orphan), which removed an analogous orphan entry pointing at a non-existent mdx file.

[CLAassistant]

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✅ shahargl
❌ ayb

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