Update dependency i18next to v19.6.0

Author: renovate-bot

package-lock.json

@@ -20,7 +20,7 @@
     "formik": "2.0.4",
     "history": "4.10.1",
     "i18n": "0.8.4",
-    "i18next": "19.0.3",
+    "i18next": "19.6.0",
     "i18next-browser-languagedetector": "4.0.1",
     "jscpd": "2.0.16",
     "jscpd-badge-reporter": "1.1.3",