cmd/worker: update go to 1.23.0

Change-Id: I90e177d24241a8da088a71b7d7ab2c946cb00797
Reviewed-on: https://go-review.googlesource.com/c/pkgsite-metrics/+/618956
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Maceo Thompson <maceothompson@google.com>

cmd/worker/Dockerfile

diff --git a/cmd/worker/Dockerfile b/cmd/worker/Dockerfile
index 65854ee..e557e90 100644
--- a/cmd/worker/Dockerfile
+++ b/cmd/worker/Dockerfile
@@ -13,7 +13,7 @@
 # installed here will be shadowed.
 
 
-FROM golang:1.22.2
+FROM golang:1.23.0
 
 LABEL maintainer="Go Ecosystem Team <go-ecosystem-team@google.com>"