Update golang Docker tag to v1.23.4

Author: renovate[bot]

Dockerfile

@@ -16,7 +16,7 @@ WORKDIR /build
 RUN git clone https://github.com/JonasProgrammer/docker-machine-driver-hetzner . && git checkout "${DOCKER_MACHINE_DRIVER_HETZNER_VERSION}" && rm -rf .git
 
 
-FROM golang:1.22.3-alpine@sha256:7e788330fa9ae95c68784153b7fd5d5076c79af47651e992a3cdeceeb5dd1df0 AS builder-go
+FROM golang:1.23.4-alpine@sha256:13aaa4b92fd4dc81683816b4b62041442e9f685deeb848897ce78c5e2fb03af7 AS builder-go
 
 ARG BUILD_USER_UID=76543
 ARG BUILD_USER_GID=76543