chore(deps): update dependency mdformat-gfm to v0.4.0 (#8)

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

Author: renovate[bot]

.pre-commit-config.yaml

@@ -33,7 +33,7 @@ repos:
   hooks:
   - id: mdformat
     additional_dependencies:
-    - mdformat-gfm==0.3.7
+    - mdformat-gfm==0.4.0
     - mdformat-ruff==0.1.3
     - mdformat-shfmt==0.2.0
     - mdformat_tables==1.0.0