all: release v1.29.0

Change-Id: Ieb49f0086eddc141eb0d13c749474803d22354d4
diff --git a/internal/version/version.go b/internal/version/version.go
index 6c25e58..f6e0119 100644
--- a/internal/version/version.go
+++ b/internal/version/version.go
@@ -51,9 +51,9 @@
 //  10. Send out the CL for review and submit it.
 const (
 	Major      = 1
-	Minor      = 28
-	Patch      = 1
-	PreRelease = "devel"
+	Minor      = 29
+	Patch      = 0
+	PreRelease = ""
 )
 
 // String formats the version string for this module in semver format.