UnionMangas: Update api url (#4077)

Update api url

src/all/unionmangas/build.gradle

@@ -1,7 +1,7 @@
 ext {
     extName = 'Union Mangas'
     extClass = '.UnionMangasFactory'
-    extVersionCode = 5
+    extVersionCode = 6
     isNsfw = true
 }
 

src/all/unionmangas/src/eu/kanade/tachiyomi/extension/all/unionmangas/UnionMangas.kt

@@ -203,7 +203,7 @@ class UnionMangas(private val langOption: LanguageOption) : HttpSource() {
 
     companion object {
         const val SEARCH_PREFIX = "slug:"
-        val apiUrl = "https://app.unionmanga.xyz/api"
+        val apiUrl = "https://api.novelfull.us/api"
         val oldApiUrl = "https://api.unionmanga.xyz"
         val dateFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSSSS", Locale.ENGLISH)
     }