update: 添加 Adjust preinstall Tracker

--story=1020232 --user=yufei.hu 【中台】【SDK】添加 Adjust Preinstall Tracker 功能 https://www.tapd.cn/33527076/s/1147510

Signed-off-by: huyufei <yufei.hu@castbox.fm>

Runtime/GuruCore/Runtime/Adjust/AdjustService.cs

@@ -59,6 +59,8 @@ namespace Guru
 			AdjustConfig config = new AdjustConfig(appToken, environment);
 			config.setLogLevel(GetAdjustLogLevel());
 			config.setDelayStart(DelayTime);
+            
+			config.setPreinstallTrackingEnabled(true); // Adjust Preinstall
 
 #if UNITY_ANDROID
 			if (!string.IsNullOrEmpty(fbAppId)) config.setFbAppId(fbAppId); // 注入 MIR ID