[ci] Use new bootstrap.py

.gitlab-ci.yml

@@ -14,7 +14,7 @@ stages:
 .build_template: &build_job
   stage: build
   before_script:
-    - ./ci/bootstrap.sh build
+    - python3 ./ci/bootstrap.py build
   script:
     - ./ci/build.sh
   cache: &build_caches
@@ -74,7 +74,7 @@ build_macosx_36:
 .deploy_template: &deploy_job
   stage: deploy
   before_script:
-    - ./ci/bootstrap.sh local myenv
+    - python3 ./ci/bootstrap.py local myenv
   script:
     - source ${CONDA_ROOT}/etc/profile.d/conda.sh
     - conda activate myenv
@@ -115,7 +115,7 @@ pypi:
   except:
     - branches
   before_script:
-    - ./ci/bootstrap.sh local myenv
+    - python3 ./ci/bootstrap.py local myenv
   script:
     - source ${CONDA_ROOT}/etc/profile.d/conda.sh
     - conda activate myenv