Use BIND_TEAM_API_TOKEN for danger bot

This is done to unify the token usage across our repositories to
simplify token maintenance.

.gitlab-ci.yml

@@ -619,8 +619,6 @@ danger:
   only:
     refs:
       - merge_requests
-    variables:
-      - $DANGER_GITLAB_API_TOKEN
 
 checkbashisms:
   <<: *precheck_job

dangerfile.py

@@ -58,7 +58,7 @@ is_full_backport = is_backport and "Backport::Partial" not in mr_labels
 
 gl = gitlab.Gitlab(
     url=f"https://{os.environ['CI_SERVER_HOST']}",
-    private_token=os.environ["DANGER_GITLAB_API_TOKEN"],
+    private_token=os.environ["BIND_TEAM_API_TOKEN"],
 )
 proj = gl.projects.get(os.environ["CI_PROJECT_ID"])
 mr = proj.mergerequests.get(os.environ["CI_MERGE_REQUEST_IID"])