Update engine hash for 1.20.0-7.1.pre (#61270)

* Update engine hash for 1.20.0-7.1.pre

* rev tester version

Co-authored-by: Christopher Fujino <christopherfujino@gmail.com>
diff --git a/bin/internal/engine.version b/bin/internal/engine.version
index 526e3e5..a408a77 100644
--- a/bin/internal/engine.version
+++ b/bin/internal/engine.version
@@ -1 +1 @@
-0dc86cda19d55aba8b719231c11306eeaca4b798
+d48085141c2f201b1c534e6926eb39bb52d9db3e
diff --git a/dev/bots/test.dart b/dev/bots/test.dart
index 31e96ce..d9c3991 100644
--- a/dev/bots/test.dart
+++ b/dev/bots/test.dart
@@ -930,7 +930,7 @@
   );
 }
 
-const String _supportedTesterVersion = '0.0.2-dev5';
+const String _supportedTesterVersion = '0.0.2-dev7';
 
 Future<void> _pubRunTester(String workingDirectory, {
   List<String> testPaths,