Merge branch 'ci/fix_br_build_v1_4' into 'release/v1.4'

CI: Fix ESP Thread Border Router build(v1.4)

See merge request app-frameworks/esp-matter!1059

Author: chshu

.gitlab-ci.yml

@@ -62,6 +62,7 @@ variables:
 
 .setup_ot_br: &setup_ot_br
   - cd ${CI_PROJECT_DIR}
+  - apt-get update
   - apt-get install -y openssh-client
   - git clone ${ESP_THREAD_BR_REPO_URL}
   - cd ${BR_PATH}/examples/basic_thread_border_router