Update dependency i18next to v19

Author: renovate-bot

package.json

@@ -21,7 +21,7 @@
   },
   "dependencies": {
     "i18n-iso-countries": "4.0.0",
-    "i18next": "15.0.9"
+    "i18next": "19.0.0"
   },
   "devDependencies": {
     "@nestjs/common": "6.1.1",

yarn.lock

@@ -1693,10 +1693,10 @@ i18n-iso-countries@4.0.0:
   resolved "https://registry.yarnpkg.com/i18n-iso-countries/-/i18n-iso-countries-4.0.0.tgz#56d9d2fe132208294a7823f06a312c767b32e512"
   integrity sha512-DL3U2/rW4EJKXqNofuB/mHfxaca/0gwoGc7mJblvvjkNadlfWzaPaQHtC0/Cabg4SCM9+zJpl80trKx3dRY9VQ==
 
-i18next@15.0.9:
-  version "15.0.9"
-  resolved "https://registry.yarnpkg.com/i18next/-/i18next-15.0.9.tgz#42536407a921bb5a8535a4c090a26f16827a1884"
-  integrity sha512-IdVj7DqErUuMbGuj2dFT431T7zKlmDci63eae6pNA/bMwgBZKT74/KnwHXE0WH7ivo2EV/LNme4pP4Yw6vB79w==
+i18next@19.0.0:
+  version "19.0.0"
+  resolved "https://registry.yarnpkg.com/i18next/-/i18next-19.0.0.tgz#5418207d7286128e6cfe558e659fa8c60d89794b"
+  integrity sha512-xxNKNOqLdGP/M+/fzzBOhcc9hCAqv6gDhHq0xbYz/Vlz5PlMfr9P1LbBvmk7RkZjYoh/kyM1tnfSl+sJ2VaD0Q==
   dependencies:
     "@babel/runtime" "^7.3.1"