Update vendored deps

[mwestphal]

Describe your changes

• dmon 1.3.9
• imgui 1.92.5
• tinyfiledialogs update forgotten doc

Issue ticket number and link if any

#2801

Checklist for finalizing the PR

• I have performed a self-review of my code
• I have added tests for new features and bugfixes
• I have added documentation for new features
• If it is a modifying the libf3d API, I have updated bindings
• If it is a modifying the .github/workflows/versions.json, I have updated docker_timestamp

Continuous integration

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[mwestphal]

\ci full

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.66%. Comparing base (c7fda63) to head (a5c6997).
⚠️ Report is 6 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2802      +/-   ##
==========================================
- Coverage   96.68%   96.66%   -0.03%     
==========================================
  Files         142      142              
  Lines       12995    12995              
==========================================
- Hits        12564    12561       -3     
- Misses        431      434       +3     

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