chore: remove boto3 from requriements.txt

This was initially used to run the testing environment in AWS
but it proved to be too slow and costly to sustain.

requirements.txt

@@ -2,4 +2,3 @@ jinja2~=3.1.4
 pylint~=3.3.1
 black~=24.10.0
 mkdocs~=1.6.1
-boto3~=1.35.54