ENH: Test Linux ARM in CI

GitHub Actions Linux ARM runners are now available for free for open
source projects.

  https://github.blog/changelog/2025-01-16-linux-arm64-hosted-runners-now-available-for-free-in-public-repositories-public-preview/

Author: thewtex

.github/workflows/macos-arm.yml .github/workflows/arm.yml.github/workflows/macos-arm.yml renamed to .github/workflows/arm.yml

@@ -1,4 +1,4 @@
-name: ITK.macOS.Arm64
+name: ITK.Arm64
 
 on:
     push:
@@ -32,9 +32,18 @@ env:
     CMakeVersion: "4.0.1"
 
 jobs:
-  build:
-    runs-on: ${{ matrix.os }}
-    timeout-minutes: 0
+    python:
+        runs-on: ${{ matrix.os }}
+        timeout-minutes: 0
+        strategy:
+          matrix:
+            os: [ubuntu-24.04-arm, macos-14]
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v4
+              with:
+                fetch-depth: 5
+                clean: true
 
     strategy:
       fail-fast: false

README.md

@@ -17,6 +17,7 @@ ITK: The Insight Toolkit
 | Azure Pipelines | macOS | [![Build Status](https://dev.azure.com/itkrobotmacos/ITK.macOS/_apis/build/status/ITK.macOS?branchName=main)](https://dev.azure.com/itkrobotmacos/ITK.macOS/_build/latest?definitionId=2&branchName=main) | [![Build Status](https://dev.azure.com/itkrobotmacospython/ITK.macOS.Python/_apis/build/status/ITK.macOS.Python?branchName=main)](https://dev.azure.com/itkrobotmacospython/ITK.macOS.Python/_build/latest?definitionId=2&branchName=main) |
 | GitHub Actions | Linux, Windows, macOS | [![ITK.Pixi](https://github.com/InsightSoftwareConsortium/ITK/actions/workflows/pixi.yml/badge.svg)](https://github.com/InsightSoftwareConsortium/ITK/actions/workflows/pixi.yml) | |
 | GitHub Actions | macOS (Apple Silicon)|  [![ITK.macOS.Arm64](https://github.com/InsightSoftwareConsortium/ITK/actions/workflows/macos-arm.yml/badge.svg)](https://github.com/InsightSoftwareConsortium/ITK/actions/workflows/macos-arm.yml)| |
+| GitHub Actions | Linux, macOS ARM64|  [![ITK.Arm64](https://github.com/InsightSoftwareConsortium/ITK/actions/workflows/arm.yml/badge.svg)](https://github.com/InsightSoftwareConsortium/ITK/actions/workflows/arm.yml)| |
 | Azure Pipelines | Linux (Code coverage)| [![Build Status](https://dev.azure.com/itkrobotbatch/ITK.Coverage/_apis/build/status/ITK.Coverage?branchName=main)](https://dev.azure.com/itkrobotbatch/ITK.Coverage/_build/latest?definitionId=3&branchName=main) | |
 
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