Exclude Kubernetes YAML files from pre-commit YAML validation

Multi-document YAML files (with --- separators) are valid for Kubernetes
but cause the check-yaml hook to fail. Exclude local/*-environment.yaml
and local/*.yaml files from validation.

Author: devinslick

.pre-commit-config.yaml

@@ -15,6 +15,7 @@ repos:
         name: Fix end of files
       - id: check-yaml
         name: Check YAML syntax
+        exclude: '(local/.*-environment\.yaml|local/.*\.yaml)$'  # Exclude K8s multi-document YAML files
       - id: check-json
         name: Check JSON syntax
         files: '\.(json|manifest)$'