feat: Added handling for sequence classes

[Masara]

Closes #126

Summary of Changes

Added handling for sequence classes and also removed a few "raises" and replaced them with UnknownType's.

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	black	6	0	0	1.24s
✅ PYTHON	mypy	6		0	5.65s
✅ PYTHON	ruff	6	0	0	0.04s
✅ REPOSITORY	git_diff	yes		no	0.03s

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.53%. Comparing base (3477b4a) to head (954a1a4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #127   +/-   ##
=======================================
  Coverage   99.53%   99.53%           
=======================================
  Files          23       23           
  Lines        2344     2373   +29     
=======================================
+ Hits         2333     2362   +29     
  Misses         11       11           

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[lars-reimann]

Getting this error

Traceback (most recent call last):
  File "C:\Users\Lars\AppData\Local\pypoetry\Cache\virtualenvs\safe-ds-stubgen-VELKLkPa-py3.12\Scripts\\safe-ds-stubgen", line 6, in <module>
    sys.exit(main())
             ^^^^^^
  File "E:\Repositories\safe-ds\Stub-Generator\src\safeds_stubgen\main.py", line 14, in main
    cli()
  File "E:\Repositories\safe-ds\Stub-Generator\src\safeds_stubgen\api_analyzer\cli\_cli.py", line 20, in cli
    _run_stub_generator(args.src.resolve(), args.out.resolve(), args.docstyle, args.testrun, args.naming_convert)
  File "E:\Repositories\safe-ds\Stub-Generator\src\safeds_stubgen\api_analyzer\cli\_cli.py", line 94, in _run_stub_generator
    stub_data = generate_stub_data(stubs_generator=stubs_generator, out_path=out_dir_path)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "E:\Repositories\safe-ds\Stub-Generator\src\safeds_stubgen\stubs_generator\_generate_stubs.py", line 67, in generate_stub_data
    module_text, package_info = stubs_generator(module)
                                ^^^^^^^^^^^^^^^^^^^^^^^
  File "E:\Repositories\safe-ds\Stub-Generator\src\safeds_stubgen\stubs_generator\_generate_stubs.py", line 188, in __call__
    return self._create_module_string()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "E:\Repositories\safe-ds\Stub-Generator\src\safeds_stubgen\stubs_generator\_generate_stubs.py", line 213, in _create_module_string
    module_text += f"\n{self._create_class_string(class_)}\n"
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "E:\Repositories\safe-ds\Stub-Generator\src\safeds_stubgen\stubs_generator\_generate_stubs.py", line 339, in _create_class_string
    f"{python_name_info}{class_indentation}{self._create_todo_msg(class_indentation)}class "
                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "E:\Repositories\safe-ds\Stub-Generator\src\safeds_stubgen\stubs_generator\_generate_stubs.py", line 1000, in _create_todo_msg
    + {
      ^
KeyError: 'OutputConversion'

when running

safe-ds-stubgen -o "./out" -nc -s "E:/Repositories/safe-ds/Library/src" --docstyle NUMPYDOC -v

on Safe-DS/Library@46f54af.

[Masara]

@lars-reimann It should run now.

[lars-reimann]

Nicely done, thank you.

[lars-reimann]

🎉 This PR is included in version 0.3.0 🎉

The release is available on:

• v0.3.0
• GitHub release

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