simplify Breach log handler

[komuw]

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Now,

What(What have you changed?)

• Simplify Breach Log Hnadler

Why(Why did you change it?)

• In Add a logging BreachHandler #149, we added a breach log handler.
  In this PR, we simplify it's implementation

References:

[codecov-io]

Codecov Report

Merging #152 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #152      +/-   ##
==========================================
+ Coverage   86.34%   86.36%   +0.01%     
==========================================
  Files          14       14              
  Lines        1318     1305      -13     
==========================================
- Hits         1138     1127      -11     
+ Misses        180      178       -2

Impacted Files	Coverage Δ
naz/__version__.py	100% <ø> (ø)	⬆️
naz/log.py	90.78% <100%> (+0.9%)	⬆️

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