[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/myint/rstcheck: v6.0.0a1 → v6.0.0rc1](rstcheck/rstcheck@v6.0.0a1...v6.0.0rc1)

.pre-commit-config.yaml

@@ -45,6 +45,6 @@ repos:
             additional_dependencies: [pygments, restructuredtext_lint]
 # This can deal with sphinx directives
     - repo: https://github.com/myint/rstcheck
-      rev: v6.0.0a1  # Use the sha / tag you want to point at
+      rev: v6.0.0rc1  # Use the sha / tag you want to point at
       hooks:
       - id: rstcheck