chore(deps): update golang docker tag to v1.25.1 (#59)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -1,5 +1,5 @@
 # Build the k6 binary with the extension
-FROM golang:1.25.0@sha256:e5ab8640ed89da51a95d687efdcef75bf1bf7f66368af2818ff7fd34b0bc6539 as builder
+FROM golang:1.25.1@sha256:76a94c4a37aaab9b1b35802af597376b8588dc54cd198f8249633b4e117d9fcc as builder
 
 ENV GRAFANA_K6_VERSION="0.56.0"
 ENV XK6_MONGO_VERSION="0.2.0"