[ci] made docs to be build on macosx

This fixed the problem with unavailable fonts on the docs packages. It changes the receipt for the docs packages to build on the mac instead of the linux machine, since build on linux is done on a very bare docker image that includes no fonts.

bob/devtools/data/gitlab-ci/docs.yaml

@@ -32,31 +32,23 @@ stages:
       - ${CONDA_ROOT}/pkgs/urls.txt
 
 
-.build_linux_template: &linux_build_job
+.build_macosx_template: &macosx_build_job
   <<: *build_job
   tags:
-    - docker
-  image: continuumio/conda-concourse-ci
+    - macosx
   artifacts:
     expire_in: 1 week
     paths:
-      - ${CONDA_ROOT}/conda-bld/linux-64/*.tar.bz2
+      - ${CONDA_ROOT}/conda-bld/osx-64/*.tar.bz2
   cache:
     <<: *build_caches
-    key: "linux-cache"
+    key: "macosx-cache"
 
 
-build_linux_36:
-  <<: *linux_build_job
+build_macosx_36:
+  <<: *macosx_build_job
   variables:
-    GITLAB_CHECKOUT_STRATEGY: "https://gitlab-ci-token:${CI_BUILD_TOKEN}@gitlab.idiap.ch/"
     PYTHON_VERSION: "3.6"
-    BUILD_EGG: "true"
-  artifacts:
-    expire_in: 1 week
-    paths:
-      - sphinx
-      - ${CONDA_ROOT}/conda-bld/linux-64/*.tar.bz2
 
 
 # Deploy targets
@@ -70,7 +62,7 @@ build_linux_36:
     - bdt ci deploy -vv
     - bdt ci clean -vv
   dependencies:
-    - build_linux_36
+    - build_macosx_36
   tags:
     - docker
   cache: &build_caches