Ignore devcontainer, launch.json from json pre-commit validation

They follow jsonc format and allow comments but fail the json
validator. This is a spurious error and should be ignored

.pre-commit-config.yaml

@@ -12,6 +12,7 @@ repos:
     # Exclude elisp files to not clear page breaks
     exclude: \.el$
   - id: check-json
+    exclude: (devcontainer\.json|launch\.json)$
   - id: check-toml
   - id: check-yaml