cmd/worker: bump Go version to 1.25.3 in Dockerfile

This is done to prevent build failure due to running Go version with
vulnerabilities in the standard library.

Change-Id: Ib06894f61a2f617b90f0989ab0086e2626c69ec2
Reviewed-on: https://go-review.googlesource.com/c/vulndb/+/716640
Reviewed-by: Ethan Lee <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Auto-Submit: Nicholas Husin <[email protected]>
Reviewed-by: Nicholas Husin <[email protected]>

Author: nicholashusin

cmd/worker/Dockerfile

@@ -5,7 +5,7 @@
 # This Dockerfile expects the build context to be the repo root.
 
 ################################################################
-FROM golang:1.24.6 AS builder
+FROM golang:1.25.3 AS builder
 # If you change the Go version above, change the FROM line below as well.
 
 # Set the working directory outside $GOPATH to ensure module mode is enabled.
@@ -28,7 +28,7 @@ COPY . /src
 RUN go build -mod=readonly ./cmd/worker
 
 ################################################################
-FROM golang:1.24.6
+FROM golang:1.25.3
 
 LABEL maintainer="Go VulnDB Team <[email protected]>"