fix(deps): update dependency @ngx-translate/core to v15

This MR contains the following updates:

Package	Type	Update	Change
@​ngx-translate/core	dependencies	major	14.0.0 -> 15.0.0

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gui/package.json

@@ -30,7 +30,7 @@
     "@fortawesome/angular-fontawesome": "0.11.1",
     "@fortawesome/fontawesome-svg-core": "6.2.1",
     "@fortawesome/free-solid-svg-icons": "6.2.1",
-    "@ngx-translate/core": "14.0.0",
+    "@ngx-translate/core": "15.0.0",
     "@ngx-translate/http-loader": "7.0.0",
     "@nrwl/angular": "14.8.8",
     "bootstrap": "4.6.2",