all: release v1.35.1

Change-Id: Ia6b809a10e6d4f59a87b88268952347b5e24f573
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/618197
Reviewed-by: Lasse Folger <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>

Author: stapelberg

internal/version/version.go

@@ -52,8 +52,8 @@ import (
 const (
 	Major      = 1
 	Minor      = 35
-	Patch      = 0
-	PreRelease = "devel"
+	Patch      = 1
+	PreRelease = ""
 )
 
 // String formats the version string for this module in semver format.