Update Go version to 1.21.5

.gitlab-ci.yml

@@ -14,7 +14,7 @@ linters:
     - golangci-lint run
 
 unit tests:
-  image: golang:1.21.4
+  image: golang:1.21.5
   stage: test
   script:
     - go version
@@ -23,7 +23,7 @@ unit tests:
   coverage: '/total:\s+\(statements\)\s+(\d+.\d+\%)/'
 
 govulncheck:
-  image: golang:1.21.4
+  image: golang:1.21.5
   stage: test
   script:
     - go version

.golangci.yml

@@ -27,3 +27,4 @@ linters:
     - misspell
     - staticcheck
     - unused
+    - gosimple

deployment/ci/Dockerfile

-FROM golang:1.21.4-alpine3.17 as builder
+FROM golang:1.21.5-alpine3.17 as builder
 
 RUN apk add git
 

deployment/compose/Dockerfile

-FROM golang:1.21.4
+FROM golang:1.21.5
 
 RUN go install github.com/ysmood/kit/cmd/guard@v0.25.11
 

go.mod

 module gitlab.eclipse.org/eclipse/xfsc/tsa/signer
 
-go 1.20
+go 1.21
 
 require (
 	github.com/hashicorp/vault/api v1.9.2