Add bldd case to Op::parse_opcode()

[ironcev]

Description

The bldd opcode was not covered in the Op::parse_opcode() which resulted in Unknown opcode: "bldd" error.

The remaining part of the bldd opcode integration chain is already implemented in #6254.

Checklist

• I have linked to any relevant issues.
• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation where relevant (API docs, the reference, and the Sway book).
  • If my change requires substantial documentation changes, I have requested support from the DevRel team
• I have added tests that prove my fix is effective or that my feature works.
• I have added (or requested a maintainer to add) the necessary Breaking* or New Feature labels where relevant.
• I have done my best to ensure that my PR adheres to the Fuel Labs Code Review Standards.
• I have requested a review from the relevant team or maintainers.

[codspeed-hq]

CodSpeed Performance Report

Merging #6957 will not alter performance

_{Comparing ironcev/bldd (ff219b8) with master (fccc8a9)}

Summary

✅ 22 untouched benchmarks

[zees-dev]

LGTM 👍

However you please add a simple test case to validate compilation of sway code which uses this assembly instruction.
E.g. maybe something like this (introduced in recent PR for another op-code).