Make Hermes source archive extraction repository-agnostic (#59589)

Summary:
Download Hermes sources from the canonical `meta/hermes` repository and strip the archive’s top-level directory without matching its owner or repository name. This keeps `CMakeLists.txt` at the expected source root after repository moves; exclude empty directories so the archive wrapper is not recreated.

Changelog:
[Android][Fixed] - Fix Hermes source builds after the Hermes repository move

Differential Revision: D128177063

Author: javache

packages/react-native/ReactAndroid/hermes-engine/build.gradle.kts

@@ -104,7 +104,7 @@ val downloadHermes by
     tasks.registering(Download::class) {
       src(
           providers.provider {
-            "https://github.com/facebook/hermes/tarball/${hermesVersionProvider.get()}"
+            "https://github.com/meta/hermes/tarball/${hermesVersionProvider.get()}"
           },
       )
       onlyIfModified(true)
@@ -119,13 +119,8 @@ val unzipHermes by
     tasks.registering(Copy::class) {
       dependsOn(downloadHermes)
       from(tarTree(downloadHermesDest)) {
-        eachFile {
-          // We flatten the unzip as the tarball contains a `facebook-hermes-<SHA>`
-          // folder at the top level.
-          if (this.path.startsWith("facebook-hermes-")) {
-            this.path = this.path.substringAfter("/")
-          }
-        }
+        eachFile { path = path.substringAfter("/") }
+        includeEmptyDirs = false
       }
       into(hermesDir)
     }