Adding Makefile and updating CI

[bocklucas]

Summary

• Added Makefile for ease of commands
• Updated CI file to use Makefile commands

[codecov-commenter]

Codecov Report

Merging #2 (d983ad6) into main (5876de5) will decrease coverage by 1.97%.
The diff coverage is 76.47%.

@@            Coverage Diff             @@
##             main       #2      +/-   ##
==========================================
- Coverage   88.52%   86.54%   -1.98%     
==========================================
  Files           7        8       +1     
  Lines         183      275      +92     
==========================================
+ Hits          162      238      +76     
- Misses         21       37      +16     

Impacted Files	Coverage Δ
src/cold_silence/requirements_gen.py	57.14% <57.14%> (ø)
src/cold_silence/utils.py	81.81% <77.58%> (-8.19%)	⬇️
src/cold_silence/main.py	90.52% <84.84%> (+8.70%)	⬆️
src/cold_silence/settings_gen.py	88.46% <85.71%> (-1.54%)	⬇️

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