Mark CBMC version 5.51.0

[NlightNFotis]

• Each commit message has a non-empty body, explaining why the change was made.
• Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• The feature or user visible behaviour I have added or modified has been documented in the User Guide in doc/cprover-manual/
• Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
• My commit message includes data points confirming performance improvements (if claimed).
• My PR is restricted to a single feature or bugfix.
• White-space or formatting changes outside the feature-related changed lines are in commits of their own.

[codecov]

Codecov Report

Merging #6677 (3d16d64) into develop (52d5788) will decrease coverage by 0.00%.
The diff coverage is 50.00%.

@@             Coverage Diff             @@
##           develop    #6677      +/-   ##
===========================================
- Coverage    76.81%   76.81%   -0.01%     
===========================================
  Files         1582     1582              
  Lines       182764   182776      +12     
===========================================
+ Hits        140399   140405       +6     
- Misses       42365    42371       +6     

Impacted Files	Coverage Δ
src/ansi-c/c_typecheck_expr.cpp	76.45% <50.00%> (-0.15%)	⬇️

---

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 8562df3...3d16d64. Read the comment docs.