fix(deps): update dependency i18next to v23.6.0

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

frontend/package.json

@@ -79,7 +79,7 @@
     "flowchart.js": "1.17.1",
     "highlight.js": "11.9.0",
     "htmlparser2": "9.0.0",
-    "i18next": "23.5.1",
+    "i18next": "23.6.0",
     "i18next-browser-languagedetector": "7.1.0",
     "i18next-resources-to-backend": "1.1.4",
     "katex": "0.16.9",

yarn.lock

@@ -2527,7 +2527,7 @@ __metadata:
     flowchart.js: "npm:1.17.1"
     highlight.js: "npm:11.9.0"
     htmlparser2: "npm:9.0.0"
-    i18next: "npm:23.5.1"
+    i18next: "npm:23.6.0"
     i18next-browser-languagedetector: "npm:7.1.0"
     i18next-resources-to-backend: "npm:1.1.4"
     jest: "npm:29.7.0"
@@ -10715,12 +10715,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"i18next@npm:23.5.1":
-  version: 23.5.1
-  resolution: "i18next@npm:23.5.1"
+"i18next@npm:23.6.0":
+  version: 23.6.0
+  resolution: "i18next@npm:23.6.0"
   dependencies:
     "@babel/runtime": "npm:^7.22.5"
-  checksum: af49c399a90505ae26c1a022d06c4a11c4adcde6524b31c315dcaa43443c85892adef6de934b2af737abbdd2ffa66449d2854f135af8691223a8bb4ffaf6e1af
+  checksum: 292055897c01dd7720b3c6ab1321bd2b3b1f89e36702da9da90493f2a9e931e6a1f762a5b40d8e91c72803a8e80102ba9b64a4ffc0174acb91805f969072437c
   languageName: node
   linkType: hard