Commit release-candidate-branch.version file. (#179459)

bin/internal/engine.version

diff --git a/bin/internal/engine.version b/bin/internal/engine.version
new file mode 100644
index 0000000..e5de833
--- /dev/null
+++ b/bin/internal/engine.version
@@ -0,0 +1 @@
+b3770ec6f4337bcfe98ef80e5140a3d1bc8e1f85
\ No newline at end of file

bin/internal/release-candidate-branch.version

diff --git a/bin/internal/release-candidate-branch.version b/bin/internal/release-candidate-branch.version
new file mode 100644
index 0000000..5d71f49
--- /dev/null
+++ b/bin/internal/release-candidate-branch.version
@@ -0,0 +1 @@
+flutter-3.40-candidate.0