chore(deps): update pre-commit hook davidanson/markdownlint-cli2 to v0.18.1 (#312)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.pre-commit-config.yaml

@@ -49,7 +49,7 @@ repos:
           - mdformat-footnote==0.1.1
 
   - repo: https://github.com/DavidAnson/markdownlint-cli2
-    rev: v0.18.0
+    rev: v0.18.1
     hooks:
       - id: markdownlint-cli2