adds auth to docker login

Jenkinsfile

@@ -25,16 +25,23 @@ def runOneRegression(String suite, String preset, String simulatorPath) {
 }
 
 def resolveImageCommit(String image) {
-  sh(
+
+  withCredentials([usernamePassword(
+    credentialsId: gitea-jenkins,
+    usernameVariable: 'REGISTRY_USER',
+    passwordVariable: 'REGISTRY_PASS'
+  )]) {
+    return sh(
       script: """
         set -eu
-      docker login 
+        echo "\$REGISTRY_PASS" | docker login "git.minres.com" -u "\$REGISTRY_USER" --password-stdin >/dev/null
         docker pull "${image}" >/dev/null
         docker image inspect --format='{{ index .Config.Labels "git-commit" }}' "${image}"
       """,
       returnStdout: true
     ).trim()
   }
+}
 
 def runRegressionLane(String image, String simulatorPath, boolean allowFailure) {
   def parallelTasks = [:]