[ci] updated .gitlab-ci.yml with locale

.gitlab-ci.yml

@@ -101,13 +101,13 @@ build_macosx_36:
   image: docker.idiap.ch/beat/ci.env.editor:0.0.1r0
   before_script:
     # safe keep artifacts as before_build.sh will erase those...
+    - export LC_ALL=C.UTF-8
+    - export LANG=C.UTF-8
     - mv ${CONDA_ROOT}/conda-bld .
     - ./_ci/install.sh _ci master #updates ci support scripts
     - ./_ci/before_build.sh
     - mv conda-bld ${CONDA_ROOT}
   script:
-    - export LC_ALL=C.UTF-8
-    - export LANG=C.UTF-8
     - export BEAT_BROWSER_TESTS=true
     - BOB_TEST_ONLY=true ./_ci/build.sh
   after_script: