Add Linux ARM64 workflows utilizing new public runners

Author: jmid

.github/workflows/linux-52x-arm64.yml

@@ -0,0 +1,14 @@
+name: Linux-ARM64 5.2
+
+on:
+  schedule:
+    # Every Monday morning, at 1:11 UTC
+    - cron: '11 1 * * 1'
+  workflow_dispatch:
+
+jobs:
+  build:
+    uses: ./.github/workflows/common.yml
+    with:
+      runs_on: 'ubuntu-24.04-arm'
+      compiler_ref: refs/tags/5.2.1

.github/workflows/linux-530-trunk-arm64.yml

@@ -0,0 +1,18 @@
+name: Linux-ARM64 5.3
+
+on:
+  schedule:
+    # Every Monday morning, at 2:22 UTC
+    - cron: '22 2 * * 1'
+  pull_request:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    uses: ./.github/workflows/common.yml
+    with:
+      runs_on: 'ubuntu-24.04-arm'
+      compiler_ref: refs/heads/5.3

.github/workflows/linux-540-trunk-arm64.yml

@@ -0,0 +1,18 @@
+name: Linux-ARM64 trunk
+
+on:
+  schedule:
+    # Every Monday morning, at 3:33 UTC
+    - cron: '33 3 * * 1'
+  pull_request:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    uses: ./.github/workflows/common.yml
+    with:
+      runs_on: 'ubuntu-24.04-arm'
+      compiler_ref: refs/heads/trunk