Update .gitlab ci buildx step

.gitlab-ci.yml

@@ -81,34 +81,11 @@ build:
     - docker build -t ${CI_REGISTRY_IMAGE}:${CI_COMMIT_REF_NAME//\//-} --build-arg IS_CI="True" .
     - docker push ${CI_REGISTRY_IMAGE}:${CI_COMMIT_REF_NAME//\//-}
 
-buildx:
-  image: docker:25-git
-  variables:
-    GIT_STRATEGY: none
-  artifacts:
-    paths:
-      - buildx
-    expire_in: 1 hour
-  services:
-    - docker:29-dind
-  script:
-    - export DOCKER_BUILDKIT=1
-    - git clone https://github.com/docker/buildx.git ./docker-buildx
-    - docker build --platform=local -o . ./docker-buildx
-  rules:
-    - if: $CI_PIPELINE_SOURCE == "schedule"
-      when: never
-    - if: $CI_COMMIT_TAG =~ /^v\d+.\d+.\d+/
-
 build_arm_x86:
   image: docker:29
-  needs:
-    - buildx
   services:
     - docker:29-dind
   before_script:
-    - mkdir -p ~/.docker/cli-plugins
-    - mv buildx ~/.docker/cli-plugins/docker-buildx
     - docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
   script:
     - wget https://gitlab.com/api/v4/projects/15449363/jobs/artifacts/$CI_COMMIT_TAG/download?job=build-assets -O assets.zip
@@ -135,7 +112,8 @@ build_arm_x86:
 
     - docker login -u ${DOCKER_CI_REGISTRY_USER} -p ${DOCKER_CI_REGISTRY_PASSWORD}
     - docker buildx create --use
-    - docker buildx build --platform linux/arm64/v8,linux/amd64 --push \
+    - |
+      docker buildx build --platform linux/arm64/v8,linux/amd64 --push \
         -t ${DOCKER_CI_REGISTRY_IMAGE}:latest \
         -t ${DOCKER_CI_REGISTRY_IMAGE}:${VERSION_NO_V_FULL} \
         -t ${DOCKER_CI_REGISTRY_IMAGE}:${VERSION_NO_V_MINOR} \
@@ -145,7 +123,8 @@ build_arm_x86:
         -t ${DOCKER_CI_REGISTRY_IMAGE}:${VERSION_V_MAJOR} \
         --build-arg IS_CI="True" \
         --build-arg GLITCHTIP_VERSION=${VERSION_NO_V_FULL} \
-        --build-arg COLLECT_STATIC="True" .
+        --build-arg COLLECT_STATIC="True"
+        .
   rules:
     - if: $CI_PIPELINE_SOURCE == "schedule"
       when: never