fix: add file protocol support for script loading in ScriptManager (#1243)

Co-authored-by: inadev97 <inadev1997@gmail.com>

Author: longb1997

.changeset/rude-oranges-beg.md

@@ -0,0 +1,5 @@
+---
+"@callstack/repack": patch
+---
+
+Fix support for file protocol in ScriptManager native module when loading scripts (Android) & prefetching scripts (iOS)

packages/repack/android/src/main/java/com/callstack/repack/ScriptManagerModule.kt

@@ -65,6 +65,10 @@ class ScriptManagerModule(reactContext: ReactApplicationContext) : ScriptManager
                     remoteLoader.prefetch(config, promise)
                 }
 
+                config.url.protocol == "file" -> {
+                    fileSystemLoader.prefetch(config, promise)
+                }
+
                 else -> {
                     promise.reject(
                             ScriptLoadingError.UnsupportedScheme.code,

packages/repack/ios/ScriptManager.mm

@@ -114,7 +114,10 @@ @implementation ScriptManager
                  resolve(nil);
                }
              }];
-      } else {
+      } else if ([[config.url scheme] isEqualToString:@"file"]) {
+        [self executeFromFilesystem:config resolve:resolve reject:reject];
+      }
+      else {
         reject(
             UnsupportedScheme,
             [NSString stringWithFormat:@"Scheme in URL '%@' is not supported", config.url.absoluteString],