修复cronet启用失败

cronet相关的jar未更新，版本不匹配，而导致启用Cronet失败。

app/download.gradle

@@ -37,7 +37,7 @@ task downloadJar(type: Download) {
     ])
     dest libPath
     overwrite true
-    onlyIfModified true
+    onlyIfModified false
 }
 /**
  * 下载Cronet的arm64-v8a so

app/src/main/assets/cronet.json

@@ -1 +1 @@
-{"x86":"1fdeb6068adf33655ba73e703b744b36","armeabi-v7a":"ac543f4218fe1a679e09c510583d93fa","x86_64":"4c12de088cf2c51b754ceea224bb5cc9","arm64-v8a":"99784a12b0ff18d6b7752c7488626f5b","version":"99.0.4844.48"}
+{"arm64-v8a":"99784a12b0ff18d6b7752c7488626f5b","armeabi-v7a":"ac543f4218fe1a679e09c510583d93fa","x86":"1fdeb6068adf33655ba73e703b744b36","x86_64":"4c12de088cf2c51b754ceea224bb5cc9","version":"99.0.4844.48"}