Fix docker login

Signed-off-by: Federico Busetti <729029+febus982@users.noreply.github.com>

Author: febus982

.gitlab_ci/_templates.yml

@@ -20,7 +20,7 @@ variables:
   script:
     - docker buildx create --use
     - docker buildx inspect --bootstrap
-    - echo $CI_REGISTRY_PASSWORD | docker login -u $CI_REGISTRY_PASSWORD --password-stdin $CI_REGISTRY
+    - echo $CI_REGISTRY_PASSWORD | docker login -u $CI_REGISTRY_USER --password-stdin $CI_REGISTRY
     - echo "Building $DOCKER_IMAGE_FULL_TAG - Cache from $DOCKER_IMAGE_NAME:cache"
     # remove \ from platform to
     - export SUFFIX=$(echo $DOCKER_PLATFORM | sed 's/\///')
@@ -39,6 +39,7 @@ variables:
   services:
     - docker:$DOCKER_VERSION-dind
   script:
+    - echo $CI_REGISTRY_PASSWORD | docker login -u $CI_REGISTRY_USER --password-stdin $CI_REGISTRY
     - docker manifest create $DOCKER_IMAGE_FULL_TAG \
       --amend $DOCKER_IMAGE_FULL_TAG-linuxamd64 \
       --amend $DOCKER_IMAGE_FULL_TAG-linuxarm64
@@ -52,7 +53,7 @@ variables:
   services:
     - docker:$DOCKER_VERSION-dind
   script:
-    - echo $CI_REGISTRY_PASSWORD | docker login -u $CI_REGISTRY_PASSWORD --password-stdin $CI_REGISTRY
+    - echo $CI_REGISTRY_PASSWORD | docker login -u $CI_REGISTRY_USER --password-stdin $CI_REGISTRY
     # Remove the UTC offset, not supported by `date` in docker image (busybox)
     - export CLEAN_DATETIME=$(echo "$CI_COMMIT_TIMESTAMP" | sed 's/+00:00//' | sed 's/Z//')
     # Transform in unix timestamp