chore: mark mcp-optimizer as deprecated (#1167)

Signed-off-by: Alejandro Ponce <aponcedeleonch@stacklok.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: aponcedeleonch

registries/toolhive/servers/mcp-optimizer/server.json

@@ -21,7 +21,7 @@
             "signer_identity": "/.github/workflows/release.yml",
             "sigstore_url": "tuf-repo-cdn.sigstore.dev"
           },
-          "status": "Active",
+          "status": "Deprecated",
           "tags": [
             "mcp",
             "proxy",