Merge pull request #764 from db-ui/dependabot-npm_and_yarn-backstopjs-6.3.19

build(deps-dev): bump backstopjs from 6.3.12 to 6.3.19

Author: github-actions[bot]

package-lock.json

@@ -72,7 +72,7 @@
     "@pattern-lab/starterkit-handlebars-demo": "^6.1.0",
     "@pattern-lab/uikit-workshop": "^6.1.0",
     "autoprefixer": "^10.4.17",
-    "backstopjs": "^6.3.12",
+    "backstopjs": "^6.3.19",
     "cpr": "^3.0.1",
     "cssnano": "^6.0.5",
     "details-element-polyfill": "^2.4.0",