MNT: Update pre-commit hooks

updates:
- [github.com/python-jsonschema/check-jsonschema: 0.28.1 → 0.28.4](python-jsonschema/check-jsonschema@0.28.1...0.28.4)

Author: matthewfeickert

.pre-commit-config.yaml

@@ -79,7 +79,7 @@ repos:
       - id: yamllint
         args: ["--strict", "--config-file=.yamllint.yml"]
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.28.1
+    rev: 0.28.4
     hooks:
       # TODO: Re-enable this when https://github.com/microsoft/azure-pipelines-vscode/issues/567 is fixed.
       # - id: check-azure-pipelines