ci: Move DOCKERFILE_PATH in the inherited docker block

.gitlab-ci.yml

@@ -210,6 +210,8 @@ tests_release:
     - docker
   services:
     - docker:dind
+  variables:
+    DOCKERFILE_PATH: "docker/Dockerfile"
   before_script:
     - docker info
   script:
@@ -229,7 +231,6 @@ deploy_docker_test_image:
     - when: manual
   allow_failure: true
   variables:
-    DOCKERFILE_PATH: "docker/Dockerfile"
     IMAGE_TAG: "test-image-$CI_COMMIT_SHORT_SHA"
 
 deploy_docker_debug_sha:
@@ -239,7 +240,6 @@ deploy_docker_debug_sha:
       when: never
     - if: $CI_COMMIT_BRANCH == "master"
   variables:
-    DOCKERFILE_PATH: "docker/Dockerfile"
     IMAGE_TAG: "debug-sha-$CI_COMMIT_SHORT_SHA"
   after_script:
     - docker login -u "duniterteam" -p "$DUNITERTEAM_PASSWD"
@@ -254,7 +254,6 @@ deploy_docker_release_sha:
     - when: manual
   allow_failure: true
   variables:
-    DOCKERFILE_PATH: "docker/Dockerfile"
     IMAGE_TAG: "sha-$CI_COMMIT_SHORT_SHA"
   dependencies:
     - build_release_manual
@@ -265,7 +264,6 @@ deploy_docker_release_tag:
     - if: "$CI_COMMIT_TAG && $CI_COMMIT_TAG =~ /^v*/"
     - when: never
   variables:
-    DOCKERFILE_PATH: "docker/Dockerfile"
     IMAGE_TAG: "$CI_COMMIT_TAG"
   after_script:
     - docker login -u "duniterteam" -p "$DUNITERTEAM_PASSWD"