Automatically format ci pipeline specs with prettier (#13441)

* [ci] Deduplicate variables: sections in pipeline specs

The prettier yaml parser doesn't like these.

* [ci] provide git clean filter to format pipeline specs

* [ci] Reformat pipeline specs with prettier

substrate/scripts/ci/gitlab/pipeline/check.yml

@@ -2,56 +2,56 @@
 # Here are all jobs that are executed during "check" stage
 
 check-runtime:
-  stage:                           check
+  stage: check
   extends:
     - .kubernetes-env
     - .test-refs-no-trigger-prs-only
   variables:
-    CI_IMAGE:                      "paritytech/tools:latest"
-    GITLAB_API:                    "https://gitlab.parity.io/api/v4"
-    GITHUB_API_PROJECT:            "parity%2Finfrastructure%2Fgithub-api"
+    CI_IMAGE: "paritytech/tools:latest"
+    GITLAB_API: "https://gitlab.parity.io/api/v4"
+    GITHUB_API_PROJECT: "parity%2Finfrastructure%2Fgithub-api"
   script:
     - ./scripts/ci/gitlab/check_runtime.sh
-  allow_failure:                   true
+  allow_failure: true
 
 check-signed-tag:
-  stage:                           check
-  extends:                         .kubernetes-env
+  stage: check
+  extends: .kubernetes-env
   variables:
-    CI_IMAGE:                      "paritytech/tools:latest"
+    CI_IMAGE: "paritytech/tools:latest"
   rules:
     - if: $CI_COMMIT_REF_NAME =~ /^ci-release-.*$/
-    - if: $CI_COMMIT_REF_NAME =~ /^v[0-9]+\.[0-9]+.*$/              # i.e. v1.0, v2.1rc1
+    - if: $CI_COMMIT_REF_NAME =~ /^v[0-9]+\.[0-9]+.*$/ # i.e. v1.0, v2.1rc1
   script:
     - ./scripts/ci/gitlab/check_signed.sh
 
 test-dependency-rules:
-  stage:                           check
+  stage: check
   extends:
     - .kubernetes-env
     - .test-refs-no-trigger-prs-only
   variables:
-    CI_IMAGE:                      "paritytech/tools:latest"
+    CI_IMAGE: "paritytech/tools:latest"
   script:
     - ./scripts/ci/gitlab/ensure-deps.sh
 
 test-rust-features:
-  stage:                           check
+  stage: check
   extends:
     - .kubernetes-env
     - .test-refs-no-trigger-prs-only
   script:
     - git clone
-        --depth=1
-        --branch="$PIPELINE_SCRIPTS_TAG"
-        https://github.com/paritytech/pipeline-scripts
+      --depth=1
+      --branch="$PIPELINE_SCRIPTS_TAG"
+      https://github.com/paritytech/pipeline-scripts
     - bash ./pipeline-scripts/rust-features.sh .
 
 test-prometheus-alerting-rules:
-  stage:                           check
-  extends:                         .kubernetes-env
+  stage: check
+  extends: .kubernetes-env
   variables:
-    CI_IMAGE:                      "paritytech/tools:latest"
+    CI_IMAGE: "paritytech/tools:latest"
   rules:
     - if: $CI_PIPELINE_SOURCE == "pipeline"
       when: never
@@ -62,4 +62,4 @@ test-prometheus-alerting-rules:
   script:
     - promtool check rules ./scripts/ci/monitoring/alerting-rules/alerting-rules.yaml
     - cat ./scripts/ci/monitoring/alerting-rules/alerting-rules.yaml |
-        promtool test rules ./scripts/ci/monitoring/alerting-rules/alerting-rule-tests.yaml
+      promtool test rules ./scripts/ci/monitoring/alerting-rules/alerting-rule-tests.yaml