Update golang Docker tag to v1.26.5 (main) (#10375)

Update golang Docker tag to v1.26.5

| datasource | package | from   | to     |
| ---------- | ------- | ------ | ------ |
| docker     | golang  | 1.26.4 | 1.26.5 |

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

Author: renovate[bot]

Makefile

@@ -24,7 +24,7 @@ GOVULNCHECK_VERSION ?= v1.1.4
 
 GO_DOCKER_IMAGE_NAME    ?= golang
 # renovate: datasource=docker depName=golang versioning=docker
-GO_DOCKER_IMAGE_VERSION ?= 1.26.4-trixie
+GO_DOCKER_IMAGE_VERSION ?= 1.26.5-trixie
 GO_DOCKER_IMAGE         ?= $(GO_DOCKER_IMAGE_NAME):$(GO_DOCKER_IMAGE_VERSION)
 
 REGISTRY                      ?= ## The registry where the image is located.

build/Dockerfile

@@ -17,7 +17,7 @@ ARG UBI10_PACKAGES_IMAGE=ghcr.io/nginx/dependencies/nginx-ubi:ubi10@sha256:d0e6b
 
 
 ############################################# External dependency images #############################################
-FROM golang:1.26.4-alpine@sha256:f33ee4cd42bb16e731cb7e8a1fba2b4ec562ed61ed30834580e4ac24be8ed3cf AS golang-builder
+FROM golang:1.26.5-alpine@sha256:739b5c7c89c2ba19b5744fab836efe973158e2c4b08808e99285f735af3e2926 AS golang-builder
 FROM ghcr.io/nginx/alpine-fips:0.5.0-alpine3.22@sha256:f907d7541ab03453fd7d630dc0fb8d9a819717ea52a7956fe1f45b9833051177 AS alpine-fips-3.22
 FROM ${UBI10_PACKAGES_IMAGE} AS ubi10-packages
 FROM redhat/ubi10-minimal:10.2-1782798957@sha256:b217fa65d8c21058887b18f005f587e47a17dd1281a5196ac88d01724a273dbd AS ubi-minimal