docs: add sanurah as a contributor for code

[allcontributors]

Adds @sanurah as a contributor for code.

This was requested by iluwatar in this comment

[skip ci]

[github-actions]

PR Summary

Added Sanura Hettiarachchi as a code contributor to the project. Updated the .all-contributorsrc file to include her contribution and updated the README.md file to reflect the change in the number of contributors and to add her to the contributors table.

Changes

File	Summary
.all-contributorsrc	Added Sanura Hettiarachchi as a code contributor. Updated the contributors array in the file to include her GitHub information and code contribution type.
README.md	Updated the All Contributors badge to reflect the new contributor count (381). Added Sanura Hettiarachchi to the contributors table with her GitHub profile link and code contribution type.

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autogenerated by presubmit.ai

[github-actions]

✅ LGTM!

Review Summary

Commits Considered (2)

• 14deed1: docs: update .all-contributorsrc [skip ci]
• 0d6a433: docs: update README.md [skip ci]

Files Processed (2)

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

Actionable Comments (0)

Skipped Comments (0)

[sonarqubecloud]

Quality Gate passed

Issues
9 New issues
0 Accepted issues

Measures
0 Security Hotspots
91.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud