bump(railway): 72299c62 → 836d42c1 (#2645)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.claude-plugin/marketplace.json

@@ -2140,7 +2140,7 @@
         "url": "https://github.com/railwayapp/railway-skills.git",
         "path": "plugins/railway",
         "ref": "main",
-        "sha": "72299c62ad19a5b1e7646262f3ba9cdd96d6e2a3"
+        "sha": "836d42c1b652953c17a4523a07f1b8a68cc22064"
       },
       "homepage": "https://docs.railway.com/ai/claude-code-plugin"
     },