Update CBOR and CircleHash libraries to latest versions

[fxamacker]

Description

Bump versions:

• fxamacker/cbor [feature/stream-mode branch] to March 13 commit 12f5cb4b5eb0efcd590d323ff6a292a6d4f9e36c

• fxamacker/circlehash from 0.2.0 to 0.3.0

Closes #250

---

• [ ] Targeted PR against main branch
• [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• [ ] Code follows the standards mentioned here
• [ ] Updated relevant documentation
• [ ] Re-reviewed Files changed in the Github PR explorer
• [ ] Added appropriate labels

[codecov-commenter]

Codecov Report

Merging #251 (5f5d97d) into main (066920a) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #251   +/-   ##
=======================================
  Coverage   68.93%   68.93%           
=======================================
  Files          14       14           
  Lines        7245     7245           
=======================================
  Hits         4994     4994           
  Misses       1619     1619           
  Partials      632      632           

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 066920a...5f5d97d. Read the comment docs.