docs: add orbisai0security as a contributor for security

[allcontributors]

Adds @orbisai0security as a contributor for security.

This was requested by iluwatar in this comment

[skip ci]

[github-actions]

PR Summary

Added a new All Contributors entry for orbisai0security (OrbisAI Security) and updated the README to reflect the contribution and badge count.

Changes

File	Summary
.all-contributorsrc	Added a new contributor entry for orbisai0security with name OrbisAI Security, avatar URL, profile, and security contributions in the All Contributors configuration.
README.md	Updated the All Contributors badge from 404 to 405 and added a contributor card for OrbisAI Security with link to https://orbisappsec.com/ and avatar.

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autogenerated by presubmit.ai

[github-actions]

✅ LGTM!

Review Summary

Commits Considered (2)

• b426309: docs: update .all-contributorsrc [skip ci]
• 8ab6cbf: docs: update README.md [skip ci]

Files Processed (2)

• .all-contributorsrc (1 hunk)
• README.md (2 hunks)

Actionable Comments (0)

Skipped Comments (3)

• .all-contributorsrc [3686-3695]

  maintainability: "Validate new All Contributors entry"

• README.md [9-9]

  enhancement: "Keep All Contributors badge in sync"

• README.md [602-602]

  enhancement: "Add contributor cell for OrbisAI Security"