chore(deps): update dependency go to v1.23.8

Author: renovate-bot

infra/module-swapper/go.mod

@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/cloud-foundation-toolkit/infra/module-swap
 
 go 1.23.0
 
-toolchain go1.23.7
+toolchain go1.23.8
 
 require (
 	github.com/chainguard-dev/git-urls v1.0.2