[CI] Prepare CI for Merge Queues (#2308)

PR prepares CI to the GitHub Merge Queues. All github actions that were
running in PR adjusted so they can run in the merge queues. Zombienet
jobs will do nothing during PRs but they will run during merge queues.

Jobs that will be skipped during PR:
 - all zombienet jobs
 - all publish docker jobs

Jobs that will be skipped during merge queue:
 - check-labels
 - check-prdoc
 - pr-custom-review
 - review trigger

cc https://github.com/paritytech/ci_cd/issues/862

.github/workflows/check-labels.yml

@@ -3,11 +3,15 @@ name: Check labels
 on:
   pull_request:
     types: [labeled, opened, synchronize, unlabeled]
+  merge_group:
 
 jobs:
   check-labels:
     runs-on: ubuntu-latest
     steps:
+      - name: Skip merge queue
+        if: ${{ contains(github.ref, 'gh-readonly-queue') }}
+        run: exit 0
       - name: Pull image
         env:
           IMAGE: paritytech/ruled_labels:0.4.0

.github/workflows/check-licenses.yml

@@ -2,6 +2,7 @@ name: Check licenses
 
 on:
   pull_request:
+  merge_group:
 
 permissions:
   packages: read

.github/workflows/check-links.yml

@@ -8,6 +8,7 @@ on:
       - ".github/workflows/check-links.yml"
       - ".config/lychee.toml"
     types: [opened, synchronize, reopened, ready_for_review]
+  merge_group:
 
 permissions:
   packages: read

.github/workflows/check-markdown.yml

@@ -3,6 +3,7 @@ name: Check Markdown
 on:
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
+  merge_group:
 
 permissions:
   packages: read
@@ -23,8 +24,8 @@ jobs:
 
       - name: Install tooling
         run: |
-            npm install -g markdownlint-cli
-            markdownlint --version
+          npm install -g markdownlint-cli
+          markdownlint --version
 
       - name: Check Markdown
         env:

.github/workflows/check-prdoc.yml

@@ -3,6 +3,7 @@ name: Check PRdoc
 on:
   pull_request:
     types: [labeled, opened, synchronize, unlabeled]
+  merge_group:
 
 env:
   IMAGE: paritytech/prdoc:v0.0.5
@@ -17,6 +18,9 @@ jobs:
   check-prdoc:
     runs-on: ubuntu-latest
     steps:
+      - name: Skip merge queue
+        if: ${{ contains(github.ref, 'gh-readonly-queue') }}
+        run: exit 0
       - name: Pull image
         run: |
           echo "Pulling $IMAGE"

.github/workflows/check-publish.yml

@@ -6,6 +6,7 @@ on:
       - master
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
+  merge_group:
 
 jobs:
   check-publish:

.github/workflows/fmt-check.yml

@@ -6,6 +6,7 @@ on:
       - master
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
+  merge_group:
 
 jobs:
   quick_check:

.github/workflows/gitspiegel-trigger.yml

@@ -13,6 +13,7 @@ on:
       - unlocked
       - ready_for_review
       - reopened
+  merge_group:
 
 jobs:
   sync:

.github/workflows/pr-custom-review.yml

@@ -14,11 +14,15 @@ on:
       - ready_for_review
       - converted_to_draft
   pull_request_review:
+  merge_group:
 
 jobs:
   pr-custom-review:
     runs-on: ubuntu-latest
     steps:
+      - name: Skip merge queue
+        if: ${{ contains(github.ref, 'gh-readonly-queue') }}
+        run: exit 0
       - name: Skip if pull request is in Draft
         # `if: github.event.pull_request.draft == true` should be kept here, at
         # the step level, rather than at the job level. The latter is not

.github/workflows/review-trigger.yml

@@ -1,6 +1,6 @@
 name: Review-Trigger
 
-on: 
+on:
   pull_request_target:
     types:
       - opened
@@ -10,6 +10,7 @@ on:
       - review_request_removed
       - ready_for_review
   pull_request_review:
+  merge_group:
 
 jobs:
   trigger-review-bot:
@@ -18,6 +19,9 @@ jobs:
     runs-on: ubuntu-latest
     name: trigger review bot
     steps:
+      - name: Skip merge queue
+        if: ${{ contains(github.ref, 'gh-readonly-queue') }}
+        run: exit 0
       - name: Get PR number
         env:
           PR_NUMBER: ${{ github.event.pull_request.number }}