all: release v1.24.0

Change-Id: Ia64a609f82681decec4ee79f3659650045c4e6c1
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/235299
Reviewed-by: Damien Neil <dneil@google.com>
diff --git a/internal/version/version.go b/internal/version/version.go
index 918e6b0..6b3001c 100644
--- a/internal/version/version.go
+++ b/internal/version/version.go
@@ -52,9 +52,9 @@
 //	10. Send out the CL for review and submit it.
 const (
 	Major      = 1
-	Minor      = 23
+	Minor      = 24
 	Patch      = 0
-	PreRelease = "devel"
+	PreRelease = ""
 )
 
 // String formats the version string for this module in semver format.