修改paddleocr包名以符合安卓的包名规则

使用命令打包时会提示包名无效，修改gradle配置中的namespace为com.baidu.paddleocr

libs/paddleocr/build.gradle

@@ -4,7 +4,7 @@ plugins {
 import java.security.MessageDigest
 
 android {
-    namespace = "paddleocr"
+    namespace = "com.baidu.paddleocr"
     ndkVersion '21.1.6352462'
     compileSdk 33
     defaultConfig {
@@ -83,4 +83,4 @@ tasks.register('downloadAndExtractArchives', DefaultTask) {
         }
     }
 }
-preBuild.dependsOn downloadAndExtractArchives
+preBuild.dependsOn downloadAndExtractArchives