Add test:unit:update-snapshots script

Author: jdalton

package.json

@@ -60,6 +60,7 @@
     "test": "cross-env VITEST=1 run-s check build:* test:*",
     "test-ci": "cross-env VITEST=1 run-s build:* test:*",
     "test:unit": "vitest --run",
+    "test:unit:update-snapshots": "vitest --update",
     "update": "run-p --aggregate-output update:**",
     "update:deps": "npx --yes npm-check-updates"
   },