fix: Use importlib.resources

[edgarrmondragon]

Closes #875

[codecov]

Codecov Report

Merging #885 (25f3ab5) into main (eb024bd) will increase coverage by 0.01%.
The diff coverage is 95.00%.

❗ Current head 25f3ab5 differs from pull request most recent head 1776e94. Consider uploading reports for the commit 1776e94 to get more accurate results

@@            Coverage Diff             @@
##             main     #885      +/-   ##
==========================================
+ Coverage   80.31%   80.32%   +0.01%     
==========================================
  Files          34       34              
  Lines        3413     3430      +17     
  Branches      679      682       +3     
==========================================
+ Hits         2741     2755      +14     
- Misses        499      501       +2     
- Partials      173      174       +1     

Impacted Files	Coverage Δ
singer_sdk/streams/core.py	80.55% <94.23%> (-0.33%)	⬇️
singer_sdk/helpers/_util.py	66.66% <100.00%> (+16.66%)	⬆️

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