Change version to 1.39.1-dev (#4542)

dfawley · zasweq · web-flow · commit db2d595725fc · 2021-06-29T14:39:03.000-04:00
[skip ci] Skipping Travis. Version number change only

Co-authored-by: Zach Reyes &lt;39203661+zasweq@users.noreply.github.com&gt;
diff --git a/version.go b/version.go
@@ -19,4 +19,4 @@
 package grpc
 
 // Version is the current grpc version.
-const Version = "1.39.0"
+const Version = "1.39.1-dev"
