Update UnCiv to 3.13.0 (531)

metadata/com.unciv.app.yml

@@ -1239,9 +1239,19 @@ Builds:
       - desktop
     prebuild: sed -i -e '/maven.aliyun.com/d' ../build.gradle.kts
 
+  - versionName: 3.13.0
+    versionCode: 531
+    commit: 3.13.0
+    subdir: android
+    gradle:
+      - yes
+    rm:
+      - desktop
+    prebuild: sed -i -e '/maven.aliyun.com/d' ../build.gradle.kts
+
 AutoUpdateMode: Version %v
 UpdateCheckMode: HTTP
 UpdateCheckData: https://raw.githubusercontent.com/yairm210/Unciv/master/buildSrc/src/main/kotlin/BuildConfig.kt|appCodeNumber
     = (.*)|.|appVersion = "(.*)"
-CurrentVersion: 3.12.13-patch1
-CurrentVersionCode: 529
+CurrentVersion: 3.13.0
+CurrentVersionCode: 531