fix(expo-upload): Rename --dump-sourcemap to --source-maps (#5065)

The flag was renamed in (~2 yers ago)

- expo/expo#25303

Author: krystofwoldrich

packages/core/scripts/expo-upload-sourcemaps.js

@@ -234,7 +234,7 @@ if (numAssetsUploaded === totalAssets) {
   console.log('✅ Uploaded bundles and sourcemaps to Sentry successfully.');
 } else {
   console.warn(
-    `⚠️  Uploaded ${numAssetsUploaded} of ${totalAssets} bundles and sourcemaps. ${numAssetsUploaded === 0 ? 'Ensure you are running `expo export` with the `--dump-sourcemap` flag.' : ''
+    `⚠️  Uploaded ${numAssetsUploaded} of ${totalAssets} bundles and sourcemaps. ${numAssetsUploaded === 0 ? 'Ensure you are running `expo export` with the `--source-maps` flag.' : ''
     }`,
   );
 }