Version 2.10.0-7.0.dev

Fix the channel on the dev branch incorrectly set to be in
2.10.0-6.0.dev.
diff --git a/tools/VERSION b/tools/VERSION
index 954a82e..0ce42a7 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -23,9 +23,9 @@
 #  * Making cherry-picks to stable channel
 #     - increase PATCH by 1
 #
-CHANNEL be
+CHANNEL dev
 MAJOR 2
 MINOR 10
 PATCH 0
-PRERELEASE 6
+PRERELEASE 7
 PRERELEASE_PATCH 0