[pre-commit.ci] pre-commit autoupdate (#373)

<!--pre-commit.ci start-->
updates:
- [github.com/python-jsonschema/check-jsonschema: 0.28.3 →
0.28.4](python-jsonschema/check-jsonschema@0.28.3...0.28.4)
<!--pre-commit.ci end-->

.pre-commit-config.yaml

@@ -77,7 +77,7 @@ repos:
  - id: yamllint
  args: [ '--config-file=.yamllint.yaml' ]
  - repo: https://github.com/python-jsonschema/check-jsonschema
- rev: 0.28.3
+ rev: 0.28.4
  hooks:
  - id: check-github-workflows
  - id: check-readthedocs