vimUtils.neovimRequireCheckHook: fix hook by adding plugin dependencies to rtp

else neovim was not able to find the dependencies

pkgs/applications/editors/vim/plugins/neovim-require-check-hook.sh

···
 		# editorconfig-checker-disable
         export HOME="$TMPDIR"
         @nvimBinary@ -es --headless -n -u NONE -i NONE --clean -V1 \
-            --cmd "set rtp+=$out" \
+            --cmd "set rtp+=$out,${dependencies/ /,}" \
             --cmd "lua require('$nvimRequireCheck')"
     fi
 }