Merge branch 'pipelines' into 'main'

.gitlab-ci.yml; Cancel redundant pipelines in the CI.

See merge request app-frameworks/esp-matter!1127

.gitlab-ci.yml

@@ -1,4 +1,5 @@
 stages:
+    - cleanup
     - docker_build
     - build
     - target_test
@@ -138,6 +139,17 @@ variables:
     - cd $ESP_MATTER_PATH/examples/controller
     - idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults.otbr" set-target esp32s3 build
 
+cancel_redundant_pipelines:
+  stage: cleanup
+  image: python:3.12-slim
+  tags:
+    - cancel-pipeline
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "push" || $CI_PIPELINE_SOURCE == "merge_request_event"'
+  script:
+    - pip install --no-cache-dir requests
+    - python tools/ci/cancel_pipelines.py
+
 build_image:
   stage: docker_build
   image: espressif/dind:1