fix: avoid ruby warning for too many args

[BuonOmo]

When running RGeo test we always get this warning:

/Users/u.buonomo/.rbenv/versions/3.2.0-dev/lib/ruby/gems/3.2.0+2/gems/ffi-geos-2.3.1/lib/ffi-geos.rb:1255: warning: too many arguments for format string

Which comes from the fact that we run out tests with the ruby_verbose flag (seems like a rake default config). I'd like to keep using this flag while not have this error message.

The solution seems pretty reasonable to me, and TBH I think we might go further and only print args[0] because I did not see any time args[1] containing anything within rgeo's test suite at least

[dark-panda]

This code might not be needed at all now. Perhaps I can just remove it altogether if that would be preferable?

[BuonOmo]

@dark-panda do you mean removing the error altogether? This would be a huge breaking change for sure.. Did I miss something?

[dark-panda]

No, just removing the ternary and formatting code, so the result would just be

def default_error_handler(arg)
  raise Geos::GEOSException, arg
end

Since I don't see any location in GEOS that uses multiple arguments in this manner. I've looked around libgeos and can't find any instances where the formatting path was used, but I can check that again.

[BuonOmo]

Yes I'd definitely drop that. In RGeo test suite we always have strictly one argument when this method is called.

Seeing in capi/geos_ts_c.cpp, calls to ERROR_MESSAGE are always with a single string (same for NOTICE_MESSAGE)

[BuonOmo]

Hey @dark-panda, shouldn't we go forward with this PR?