chore(deps): update mcr.microsoft.com/playwright/mcp docker tag to v0.0.68

Author: renovate[bot]

registry/playwright/spec.yaml

@@ -46,7 +46,7 @@ tags:
   - testing
   - web
   - accessibility
-image: mcr.microsoft.com/playwright/mcp:v0.0.67
+image: mcr.microsoft.com/playwright/mcp:v0.0.68
 target_port: 8931
 permissions:
   network: