fix(ssl): provide default values in configuration

[aarnphm]

This has to do with when using API from bentoml.serve directly, the value for SSL

is not set, whereas on CLI, all fields are default to None.

Since the configuration value is not set under our default configuration files, using serve_[http|grpc]_*
directly will result in simple_di error

Traceback (most recent call last):
  File "/Users/aarnphm/.pyenv/versions/3.10.4/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/Users/aarnphm/.pyenv/versions/3.10.4/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/Users/aarnphm/workspace/playground/scripts/run.py", line 18, in <module>
    serve_http_development(
  File "/Users/aarnphm/.pyenv/versions/3.10.4/lib/python3.10/site-packages/simple_di/__init__.py", line 139, in _
    return func(*_inject_args(bind.args), **_inject_kwargs(bind.kwargs))
  File "/Users/aarnphm/.pyenv/versions/3.10.4/lib/python3.10/site-packages/simple_di/__init__.py", line 104, in _inject_args
    return tuple(a.get() if isinstance(a, Provider) else a for a in args)
  File "/Users/aarnphm/.pyenv/versions/3.10.4/lib/python3.10/site-packages/simple_di/__init__.py", line 104, in <genexpr>
    return tuple(a.get() if isinstance(a, Provider) else a for a in args)
  File "/Users/aarnphm/.pyenv/versions/3.10.4/lib/python3.10/site-packages/simple_di/providers.py", line 218, in get
    _cursor = _cursor[i]
KeyError: 'ssl'

Simple reproducible way on main:

serve_http_development(str(bento.tag), working_dir=".")

Signed-off-by: Aaron Pham 29749331+aarnphm@users.noreply.github.com

[codecov]

Codecov Report

Merging #3191 (453e113) into main (a52a201) will not change coverage.
The diff coverage is n/a.

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  Hits         2098     2098           
  Misses       7619     7619           
  Partials       47       47