use property instead of atom to get index of option element

[titusfortner]

Description

I've said I don't want to update code in the support module, but this was changed in Ruby & Java, but not Python, .NET or JS.

Motivation and Context

1. Much more performant
2. Probably fixes whatever is going on in [🐛 Bug]: selenium seems to override _, breaking another package #12659

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

[codecov-commenter]

Codecov Report

Patch coverage has no change and project coverage change: -0.01% ⚠️

Comparison is base (609b43c) 56.98% compared to head (8f24c56) 56.97%.

❗ Current head 8f24c56 differs from pull request most recent head 90502a0. Consider uploading reports for the commit 90502a0 to get more accurate results

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Additional details and impacted files

@@            Coverage Diff             @@
##            trunk   #12662      +/-   ##
==========================================
- Coverage   56.98%   56.97%   -0.01%     
==========================================
  Files          86       86              
  Lines        5331     5330       -1     
  Branches      193      193              
==========================================
- Hits         3038     3037       -1     
  Misses       2100     2100              
  Partials      193      193              

Files Changed	Coverage Δ
py/selenium/webdriver/support/select.py	80.00% <0.00%> (-0.17%)	⬇️

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[titusfortner]

Fun fact, the existing JavaScript code does not allow you to select by index with a number, only with a string.

[titusfortner]

This should also change multiple to use getDomAttribute instead of getAttribute. I'm putting into draft. Low priority

[titusfortner]

This didn't solve the issue I thought it did, and I don't really want to deal with it.