chore: 🚚 add src/ to py_file after sprout refactor (#23)

## Description

When using this command in `sprout` we currently get an error bc the
directory (without `src/`) doesn’t exist.
This PR fixes that by updating the `py_file` path to include `src/`

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## Checklist

- [X] Ran `just run-all`

bin/spaid_create_python_files

@@ -30,7 +30,7 @@ then
     exit 1
 fi
 
-py_file=$(pwd)/$1/$2/$3.py
+py_file=$(pwd)/src/$1/$2/$3.py
 test_file=$(pwd)/tests/$2/test_$3.py
 touch $py_file $test_file