skip ci based on a label (#10918)

* skip ci based on a label

* retrigger ci

Author: keewis

.github/workflows/ci-additional.yaml

@@ -22,6 +22,7 @@ jobs:
     if: |
       github.repository == 'pydata/xarray'
       && (github.event_name == 'push' || github.event_name == 'pull_request')
+      && !contains(github.event.pull_request.labels.*.name, 'skip-ci')
     outputs:
       triggered: ${{ steps.detect-trigger.outputs.trigger-found }}
     steps:

.github/workflows/ci.yaml

@@ -22,6 +22,7 @@ jobs:
     if: |
       github.repository == 'pydata/xarray'
       && (github.event_name == 'push' || github.event_name == 'pull_request')
+      && !contains(github.event.pull_request.labels.*.name, 'skip-ci')
     outputs:
       triggered: ${{ steps.detect-trigger.outputs.trigger-found }}
     steps:

.github/workflows/hypothesis.yaml

@@ -21,6 +21,7 @@ jobs:
     if: |
       github.repository == 'pydata/xarray'
       && (github.event_name == 'push' || github.event_name == 'pull_request' || github.event_name == 'schedule')
+      && !contains(github.event.pull_request.labels.*.name, 'skip-ci')
     outputs:
       triggered: ${{ steps.detect-trigger.outputs.trigger-found }}
     steps:

.github/workflows/upstream-dev-ci.yaml

@@ -25,6 +25,7 @@ jobs:
     if: |
       github.repository == 'pydata/xarray'
       && (github.event_name == 'push' || github.event_name == 'pull_request')
+      && !contains(github.event.pull_request.labels.*.name, 'skip-ci')
     outputs:
       triggered: ${{ steps.detect-trigger.outputs.trigger-found }}
     steps: