chore(repack): use the packaging DSL in the Android library

Replace the deprecated packagingOptions block with packaging, splitting the
native library and resource excludes and using keepDebugSymbols for debug
builds. The produced AARs are unchanged.

Author: dannyhw

packages/repack/android/build.gradle

@@ -87,17 +87,22 @@ android {
         }
     }
 
-    packagingOptions {
-        doNotStrip resolveBuildType() == 'debug' ? "**/**/*.so" : ''
-        excludes = [
-                "META-INF",
-                "META-INF/**",
-                "**/libjsi.so",
-                "**/libc++_shared.so",
-                "**/libfbjni.so",
-                "**/libreactnative.so",
-                "**/libhermestooling.so",
-        ]
+    packaging {
+        jniLibs {
+            if (resolveBuildType() == 'debug') {
+                keepDebugSymbols += "**/**/*.so"
+            }
+            excludes += [
+                    "**/libjsi.so",
+                    "**/libc++_shared.so",
+                    "**/libfbjni.so",
+                    "**/libreactnative.so",
+                    "**/libhermestooling.so",
+            ]
+        }
+        resources {
+            excludes += ["META-INF", "META-INF/**"]
+        }
     }
 
     sourceSets.main {