Update python docs configuration file

[busunkim96]

Updates template to match top-level conf.py in google-cloud-python

[codecov]

Codecov Report

Merging #2619 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #2619   +/-   ##
=========================================
  Coverage     86.62%   86.62%           
  Complexity     5528     5528           
=========================================
  Files           466      466           
  Lines         22017    22017           
  Branches       2414     2414           
=========================================
  Hits          19072    19072           
  Misses         2095     2095           
  Partials        850      850

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[codecov]

Codecov Report

Merging #2619 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #2619   +/-   ##
=========================================
  Coverage     86.62%   86.62%           
  Complexity     5528     5528           
=========================================
  Files           466      466           
  Lines         22017    22017           
  Branches       2414     2414           
=========================================
  Hits          19072    19072           
  Misses         2095     2095           
  Partials        850      850

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update ad375e5...0e74746. Read the comment docs.

[codecov]

Codecov Report

Merging #2619 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #2619      +/-   ##
============================================
- Coverage     86.65%   86.62%   -0.04%     
+ Complexity     5564     5528      -36     
============================================
  Files           466      466              
  Lines         22134    22017     -117     
  Branches       2423     2414       -9     
============================================
- Hits          19180    19072     -108     
+ Misses         2100     2095       -5     
+ Partials        854      850       -4

Impacted Files	Coverage Δ	Complexity Δ
...n/transformer/ruby/RubyModelTypeNameConverter.java	84.21% <0%> (-2.64%)	17% <0%> (-1%)
...oogle/api/codegen/configgen/CollectionPattern.java	92.3% <0%> (-1.45%)	25% <0%> (-10%)
...transformer/ruby/RubyImportSectionTransformer.java	98.86% <0%> (-1.14%)	26% <0%> (-1%)
...e/api/codegen/transformer/TestCaseTransformer.java	96.78% <0%> (-0.37%)	53% <0%> (+1%)
...e/api/codegen/transformer/php/PhpSurfaceNamer.java	90.9% <0%> (-0.11%)	47% <0%> (-1%)
...api/codegen/transformer/py/PythonSurfaceNamer.java	91.93% <0%> (-0.05%)	78% <0%> (-1%)
...e/api/codegen/transformer/InitCodeTransformer.java	93.52% <0%> (-0.03%)	99% <0%> (ø)
...e/api/codegen/viewmodel/DynamicLangSampleView.java	100% <0%> (ø)	3% <0%> (ø)	⬇️
...nsformer/py/PythonGapicSurfaceTestTransformer.java	100% <0%> (ø)	36% <0%> (ø)	⬇️
.../transformer/py/PythonGapicSamplesTransformer.java	100% <0%> (ø)	19% <0%> (ø)	⬇️
... and 23 more

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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