fix: Update configuration for isort and black to enforce line length and multi-line output

This commit addresses an issue where the pre-commit hook merges import formatted with isort's multiline output mode 3 back into a single line, resulting in a flake8 E508 violation in CI due to lines exceeding 79 characters

Author: diegocastrum

setup.cfg

@@ -18,3 +18,8 @@ match-dir = [^migrations]
 
 [isort]
 profile=black
+line_length=79
+multi_line_output=3
+
+[black]
+line-length = 79