Allow lines up to 88 characters in checks (following black)

.pre-commit-config.yaml

@@ -17,7 +17,7 @@ repos:
       # If `CI_MERGE_REQUEST_TARGET_BRANCH_SHA` env var is set then this will
       # run flake8 on the diff of the merge request, otherwise it will run
       # flake8 as it would usually execute via the pre-commit hook
-      entry: bash -c 'if [ -z ${CI_MERGE_REQUEST_TARGET_BRANCH_SHA} ]; then (flake8 "$@"); else (git diff $CI_MERGE_REQUEST_TARGET_BRANCH_SHA...$CI_MERGE_REQUEST_SOURCE_BRANCH_SHA | flake8 --diff); fi' --
+      entry: bash -c 'if [ -z ${CI_MERGE_REQUEST_TARGET_BRANCH_SHA} ]; then (flake8 "$@" --max-line-length 88); else (git diff $CI_MERGE_REQUEST_TARGET_BRANCH_SHA...$CI_MERGE_REQUEST_SOURCE_BRANCH_SHA | flake8 --diff --max-line-length 88); fi' --
   - repo: https://github.com/myint/rstcheck
     rev: 3f92957478422df87bd730abde66f089cc1ee19b  # commit where pre-commit support was added
     hooks: