chore(docs): add blacken-docs with 80 char line length for code blocks#4622

Br1an67 wants to merge 2 commits intolitestar-org:mainlitestar-org/litestar:mainfrom

Br1an67:fix/issue-3211-blacken-docs-line-lengthBr1an67/litestar:fix/issue-3211-blacken-docs-line-lengthCopy head branch name to clipboard