Add GHA verify workflow

This replaces the old Jenkins jobs. It will run helm lint and check
the tag.

Signed-off-by: Eric Ball <eball@linuxfoundation.org>
Change-Id: Ic027ee3ee76ed78bd81f00542c40a343bd8f5258
diff --git a/VERSION b/VERSION
index ff313b8..91466e2 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.8.4
+3.8.4-dev