[flutter-3.47-candidate.0] Sync engine.version to bbd15867c003dc66e678cb3c218649fa8bf914f2 (#189216)

Updates the engine.version file from `None (New File)` to `bbd15867c003dc66e678cb3c218649fa8bf914f2`.

bin/internal/engine.version

diff --git a/bin/internal/engine.version b/bin/internal/engine.version
new file mode 100644
index 0000000..d81258c
--- /dev/null
+++ b/bin/internal/engine.version
@@ -0,0 +1 @@
+bbd15867c003dc66e678cb3c218649fa8bf914f2