CI: less jobs on master

.gitlab-ci.yml

@@ -46,6 +46,8 @@ prepare:opam:
 build_deps:
   <<: *dind_definition
   stage: build_deps
+  except:
+    - master@tezos/tezos
   script:
     ## Building dependencies...
     - ./scripts/ci/create_docker_image.build_deps.sh
@@ -67,6 +69,8 @@ build_deps:
 build:
   <<: *build_deps_definition
   stage: build
+  except:
+    - master@tezos/tezos
   script:
     - make all
     - make build-test
@@ -359,10 +363,13 @@ publish:docker:minimal:
     - alphanet@tezos/tezos
     - zeronet@tezos/tezos
   script:
-    - docker pull "${build_deps_image}:${CI_COMMIT_SHA}"
     - if [ "${CI_PROJECT_PATH}" = "tezos/tezos" ] ; then
         ./scripts/apply_patch.sh "${CI_COMMIT_REF_NAME}" ;
       fi
+    - ./scripts/ci/create_docker_image.build_deps.sh
+        "${build_deps_image}" "${CI_COMMIT_SHA}"
+        "${opam_image}:alpine-${alpine_version}_ocaml-${ocaml_version}"
+        "yes"
     - ./scripts/ci/create_docker_image.build.sh
         "tezos_build" "${CI_COMMIT_REF_NAME}"
         "${build_deps_image}:${CI_COMMIT_SHA}"