deps: update golang docker tag to v1.26 (#1156)

Author: renovate[bot]

.gitlab-ci.yml

@@ -18,7 +18,7 @@ cache:
 
 build:
   stage: build
-  image: golang:1.25
+  image: golang:1.26
   script:
     - go env
     - go mod download
@@ -40,7 +40,7 @@ test:lint:
 
 test:unit:
   stage: test
-  image: golang:1.25
+  image: golang:1.26
   script:
     - go test -v -coverprofile=coverage.txt -covermode count ./...
     - go get github.com/boumenot/gocover-cobertura

dev/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.25 as builder
+FROM golang:1.26 as builder
 
 WORKDIR /build