fix dependency on libiconv or iconv

Refs #75281

Change-Id: I4f004eff2c9952519d02a4bd5933cead025d450e
diff --git a/RingWinClient.pro b/RingWinClient.pro
index 29c76e8..c604bef 100644
--- a/RingWinClient.pro
+++ b/RingWinClient.pro
@@ -117,7 +117,7 @@
                             $$RUNTIMEDIR/libharfbuzz-0.dll \
                             $$RUNTIMEDIR/libintl-8.dll $$RUNTIMEDIR/libpcre-1.dll \
                             $$RUNTIMEDIR/libpcre16-0.dll $$RUNTIMEDIR/libpng16-16.dll \
-                            $$RUNTIMEDIR/libjpeg-62.dll
+                            $$RUNTIMEDIR/libjpeg-62.dll $$RUNTIMEDIR/libiconv-2.dll
     QTDEPSRUNTIME.path = $$OUT_PWD/release
 
     QTPLATFORMS.files = $$(QTDIR)/plugins/platforms/qwindows.dll