fix(easytier): Replace util.pcdata with xml.pcdata in easytier.lua

Adds a fix to the `update.sh` script to correct the `easytier.lua` file within the `luci-app-easytier` package.

The `easytier.lua` file incorrectly uses `util.pcdata` for XML data handling. This commit replaces `util.pcdata` with `xml.pcdata` to ensure proper XML escaping and prevent potential display issues or errors in the LuCI interface for EasyTier. The change is applied during the build process.

Author: ZqinKing

update.sh

@@ -983,6 +983,13 @@ update_argon() {
     echo "luci-theme-argon 更新完成"
 }
 
+fix_easytier_lua() {
+    local file_path="$BUILD_DIR/package/feeds/small8/luci-app-easytier/luasrc/model/cbi/easytier.lua"
+    if [ -f "$file_path" ]; then
+        sed -i 's/util.pcdata/xml.pcdata/g' "$file_path"
+    fi
+}
+
 main() {
     clone_repo
     clean_up
@@ -1029,6 +1036,7 @@ main() {
     update_uwsgi_limit_as
     update_argon
     install_feeds
+    fix_easytier_lua
     update_adguardhome
     update_script_priority
     update_geoip