perf(ci): run jobs on arm64 hosted runners

GitHub's arm64 hosted runners are free in public repositories and
generally available. Move the per-PR and per-push jobs to ubuntu-24.04-arm.

Author: LMLiam

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
 
   triage:
     name: Triage
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 5
     permissions:
       actions: read
@@ -165,7 +165,7 @@ jobs:
     name: Lint (Kotlin)
     needs: [triage]
     if: needs.triage.outputs.run == 'true' && needs.triage.outputs.code == 'true'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 15
     steps:
       - name: Checkout
@@ -183,7 +183,7 @@ jobs:
     name: Lint (Actions)
     needs: [triage]
     if: needs.triage.outputs.run == 'true' && needs.triage.outputs.code == 'true'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 5
     steps:
       - name: Checkout
@@ -234,7 +234,7 @@ jobs:
             tasks: :minimessage:koverBinaryReport :serializer:koverBinaryReport :minimessage:jar :serializer:jar
           - shard: runtime
             tasks: :coroutines:koverBinaryReport :paper:koverBinaryReport :test:koverBinaryReport :test-snapshot:koverBinaryReport :bom:build :coroutines:jar :paper:jar :test:jar :test-snapshot:jar
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 20
     permissions:
       checks: write
@@ -359,7 +359,7 @@ jobs:
     name: Aggregate
     needs: [build]
     if: needs.build.result == 'success'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 15
     permissions:
       contents: read
@@ -490,7 +490,7 @@ jobs:
     name: Dokka
     needs: [triage]
     if: needs.triage.outputs.run == 'true' && needs.triage.outputs.code == 'true'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 10
     permissions:
       contents: read
@@ -522,7 +522,7 @@ jobs:
       && github.event_name == 'pull_request'
       && needs.aggregate.result != 'cancelled'
       && needs.aggregate.result != 'skipped'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 25
     permissions:
       actions: read
@@ -652,7 +652,7 @@ jobs:
     name: Vanilla conformance
     needs: [triage]
     if: needs.triage.outputs.run == 'true' && needs.triage.outputs.vanilla == 'true'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 20
     permissions:
       checks: write
@@ -707,7 +707,7 @@ jobs:
   dependencies:
     name: Dependencies
     if: github.event_name == 'pull_request'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 10
     steps:
       - name: Checkout
@@ -724,7 +724,7 @@ jobs:
   commits:
     name: Commits
     if: github.event_name == 'push'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 10
     steps:
       - name: Checkout
@@ -754,7 +754,7 @@ jobs:
     name: Status
     if: always()
     needs: [triage, lint-kotlin, lint-actions, build, aggregate, dokka, vanilla, dependencies]
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 5
     steps:
       - name: Evaluate

.github/workflows/maintainer-approval.yml

@@ -19,7 +19,7 @@ jobs:
       && (github.event.review.state == 'approved'
       || github.event.review.state == 'changes_requested'
       || github.event.review.state == 'dismissed'))
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 5
     permissions:
       contents: read

.github/workflows/pr-metrics-publish.yml

@@ -23,7 +23,7 @@ jobs:
   publish:
     name: Publish PR metrics
     if: github.event.workflow_run.event == 'pull_request'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 10
     permissions:
       actions: read

.github/workflows/pr.yml

@@ -18,7 +18,7 @@ jobs:
   # ─── Title validation ────────────────────────────────────────────────────────
   title:
     name: Title
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 10
     permissions:
       contents: read
@@ -44,7 +44,7 @@ jobs:
   # ─── Commit subjects ────────────────────────────────────────────────────────
   commits:
     name: Commits
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 10
     permissions:
       contents: read
@@ -77,7 +77,7 @@ jobs:
   labels:
     name: Labels
     if: github.event_name == 'pull_request_target'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 10
     permissions:
       contents: read

.github/workflows/qodana-publish.yml

@@ -18,7 +18,7 @@ jobs:
   publish:
     name: Publish Qodana result
     if: github.event.workflow_run.conclusion != 'skipped'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     timeout-minutes: 10
     permissions:
       actions: read