docs: add Mukul-Howale as a contributor for code

[allcontributors]

Adds @Mukul-Howale as a contributor for code.

This was requested by iluwatar in this comment

[skip ci]

[github-actions]

PR Summary

Adds Mukul-Howale as a code contributor. Updates the All Contributors config and README to reflect the new contributor.

Changes

File	Summary
.all-contributorsrc	Appended a new contributor entry for Mukul-Howale with login Mukul-Howale, name Mukul Howale, avatar URL, profile, and code contribution.
README.md	Updated the All Contributors badge count from 413 to 414 and added a new contributor cell for Mukul-Howale in the contributors table.

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autogenerated by presubmit.ai

[github-actions]

✅ LGTM!

Review Summary

Commits Considered (2)

• 95f0e10: docs: update .all-contributorsrc [skip ci]
• bbe30fb: 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 [3767-3776]

  maintainability: "Contributor entry formatting"

• README.md [9-9]

  readability: "All Contributors badge count"

• README.md [614-615]

  readability: "Add contributor to contributors table"