fix: use the right Go version in the CI

Author: mdelapenya

.ci/Jenkinsfile

@@ -34,13 +34,14 @@ pipeline {
         deleteDir()
         gitCheckout(basedir: "${BASE_DIR}")
         stash allowEmpty: true, name: 'source', useDefaultExcludes: false
+        setEnvVar("GO_VERSION", readFile("${env.WORKSPACE}/${env.BASE_DIR}/.go-version").trim())
       }
     }
     stage('Check') {
       options { skipDefaultCheckout() }
       steps {
         cleanup()
-        withGoEnv(){
+        withGoEnv(version: "${GO_VERSION}"){
           dir("${BASE_DIR}"){
             sh(label: 'check',script: 'make check')
           }
@@ -51,7 +52,7 @@ pipeline {
       options { skipDefaultCheckout() }
       steps {
         cleanup()
-        withGoEnv(){
+        withGoEnv(version: "${GO_VERSION}"){
           dir("${BASE_DIR}"){
             sh(label: 'local',script: 'make local')
           }
@@ -62,7 +63,7 @@ pipeline {
       options { skipDefaultCheckout() }
       steps {
         cleanup()
-        withGoEnv(){
+        withGoEnv(version: "${GO_VERSION}"){
           dir("${BASE_DIR}"){
             retryWithSleep(retries: 2, seconds: 5, backoff: true){ sh(label: "Install Docker", script: '.ci/scripts/install-docker-compose.sh') }
             sh(label: 'test', script: 'make test')