[Docs Site] Update pinned api-schemas commit

[github-actions]

This PR updates the api-schemas commit reference to the latest version (554cd74cf423a5898d1805caa738fd776a9f16bb).

---

Important

Update COMMIT in src/util/api.ts to fetch the latest OpenAPI schema from the new commit.

• Behavior:
  • Updates COMMIT in src/util/api.ts to 554cd74cf423a5898d1805caa738fd776a9f16bb to fetch the latest OpenAPI schema.
• Misc:
  • No other changes or additions in the code.

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