cleanup: fix spacing between jobs; test: building snaps in arm

Author: kbdharun

.github/workflows/test.yml

@@ -56,10 +56,15 @@ jobs:
         tldr --version
 
   build-snap:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: ['ubuntu-latest', 'ubuntu-24.04-arm']
 
     steps:
      - uses: actions/checkout@v4
+
      - uses: canonical/action-build@3bdaa03e1ba6bf59a65f84a751d943d549a54e79 # v1.3.0
        id: snapcraft-build
        with: