Fix some typos

[fwesselm]

Description

Fix some typos.

Checklist

• I have read the contributing guidelines
• This PR targets the latest branch
• Tests are passing
• Documentation was updated where relevant
• This PR is not primarily AI-generated (per the AI contributions policy in CONTRIBUTING.md)

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 73.27%. Comparing base (bf989e9) to head (57016c1).
⚠️ Report is 22 commits behind head on latest.

Files with missing lines	Patch %	Lines
highs/mip/MipTimer.h	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           latest    #3254      +/-   ##
==========================================
+ Coverage   73.24%   73.27%   +0.02%     
==========================================
  Files         445      445              
  Lines      108105   108191      +86     
  Branches    17328    17344      +16     
==========================================
+ Hits        79180    79274      +94     
+ Misses      28649    28641       -8     
  Partials      276      276              

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[jajhall]

Thanks @fwesselm Although widespread, I don't think these will cause merge conflicts with any branches I'm working on