ci: Run on ARM runners in addition to x64

Author: nschonni

.github/workflows/build-test.yml

@@ -51,7 +51,7 @@ jobs:
     if: ${{ fromJson(needs.gen-matrix.outputs.matrix) }}
     needs: gen-matrix
     name: build
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     timeout-minutes: 60
     strategy:
       fail-fast: false

genMatrix.js

@@ -60,10 +60,16 @@ const getDockerfileMatrixEntry = (file) => {
 
   const version = getFullNodeVersionFromDockerfile(file);
 
-  return {
+  return [{
     version,
     variant,
-  };
+    os: 'ubuntu-24.04'
+  },
+  {
+    version,
+    variant,
+    os: 'ubuntu-24.04-arm64'
+  }];
 };
 
 const generateBuildMatrix = (filesAdded, filesModified, filesRenamed) => {