fix(deps): update dependency sales-tax to v2.19.0

Author: renovate[bot]

package-lock.json

@@ -49,7 +49,7 @@
   "dependencies": {
     "jsvat-next": "3.0.4",
     "lodash": "^4.17.20",
-    "sales-tax": "2.18.0"
+    "sales-tax": "2.19.0"
   },
   "jest": {
     "moduleFileExtensions": [