Add type error handling

[LiaoU3]

Add type error handling for _get_date_obj. It raise type error when getting an unexpected argument type.

[github-actions]

----------------------------------------------------------------
MarketTime/__init__.py                 2      0   100%
MarketTime/future_market_time.py     118      3    97%   31, 155, 177
MarketTime/market_time.py             44      1    98%   27
MarketTime/stock_market_time.py       36     27    25%   14-28, 34-45, 51-62
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TOTAL                                200     31    84%

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.00%. Comparing base (5fc65c1) to head (2737725).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #16      +/-   ##
==========================================
+ Coverage   84.84%   85.00%   +0.15%     
==========================================
  Files           4        4              
  Lines         198      200       +2     
==========================================
+ Hits          168      170       +2     
  Misses         30       30              

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[github-actions]

----------------------------------------------------------------
MarketTime/__init__.py                 2      0   100%
MarketTime/future_market_time.py     118      3    97%   31, 155, 177
MarketTime/market_time.py             44      0   100%
MarketTime/stock_market_time.py       36     27    25%   14-28, 34-45, 51-62
----------------------------------------------------------------
TOTAL                                200     30    85%