feat: summary_signature for signature in api index

[machow]

This PR addresses #40 by providing a summary_signature option to Auto, that shows a simple signature in the index page. E.g.

• before: get_object
• now: get_object(path, object_name, parser, ...)

Note that the ellipse currently is used after 3 parameters, but I'm thinking about how this behavior shoudl work

TODO: decide on MAX_PARAMETERS behavior

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 93.51852% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.63%. Comparing base (1fc3fbd) to head (571e789).

Files with missing lines	Patch %	Lines
quartodoc/renderers/md_renderer.py	85.10%	7 Missing ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #418      +/-   ##
==========================================
+ Coverage   89.53%   89.63%   +0.09%     
==========================================
  Files          40       40              
  Lines        3183     3289     +106     
==========================================
+ Hits         2850     2948      +98     
- Misses        333      341       +8     

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[machow]

Python 3.9 is past its end-of-life, so seem okay to bump the dependency to 3.10+

(packages like Polars have plans to drop 3.9 support)