config: regenerate upload config

This is an automated CL which updates the generated upload config.

[git-generate]
go generate ./internal/configgen

Change-Id: Id70fce92464df5debc1a131c4f6014fd28e45bf6
Reviewed-on: https://go-review.googlesource.com/c/telemetry/+/736726
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Madeline Kalil <mkalil@google.com>
Auto-Submit: Gopher Robot <gobot@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

config/config.json

diff --git a/config/config.json b/config/config.json
index 0fb390b..d12ea55 100644
--- a/config/config.json
+++ b/config/config.json
@@ -373,6 +373,7 @@
 		"go1.24.9",
 		"go1.24.10",
 		"go1.24.11",
+		"go1.24.12",
 		"go1.25rc1",
 		"go1.25rc2",
 		"go1.25rc3",
@@ -382,7 +383,9 @@
 		"go1.25.3",
 		"go1.25.4",
 		"go1.25.5",
-		"go1.26rc1"
+		"go1.25.6",
+		"go1.26rc1",
+		"go1.26rc2"
 	],
 	"SampleRate": 1,
 	"Programs": [
@@ -419,6 +422,7 @@
 				"go1.24.9",
 				"go1.24.10",
 				"go1.24.11",
+				"go1.24.12",
 				"go1.25rc1",
 				"go1.25rc2",
 				"go1.25rc3",
@@ -428,7 +432,9 @@
 				"go1.25.3",
 				"go1.25.4",
 				"go1.25.5",
-				"go1.26rc1"
+				"go1.25.6",
+				"go1.26rc1",
+				"go1.26rc2"
 			],
 			"Counters": [
 				{
@@ -477,6 +483,7 @@
 				"go1.24.9",
 				"go1.24.10",
 				"go1.24.11",
+				"go1.24.12",
 				"go1.25rc1",
 				"go1.25rc2",
 				"go1.25rc3",
@@ -486,7 +493,9 @@
 				"go1.25.3",
 				"go1.25.4",
 				"go1.25.5",
-				"go1.26rc1"
+				"go1.25.6",
+				"go1.26rc1",
+				"go1.26rc2"
 			],
 			"Counters": [
 				{