ci: update ci build matrix

.github/workflows/UnitTest.yml

@@ -9,22 +9,37 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
 jobs:
   test:
+    name: Julia ${{ matrix.julia-version }}-${{ matrix.julia-arch }} - ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
+    permissions: # needed to allow julia-actions/cache to proactively delete old caches that it has created
+      actions: write
+      contents: read
     strategy:
       fail-fast: false
       matrix:
-        julia-version: ['1.6', '1']
-        os: [ubuntu-latest, windows-latest, macos-13]
+        # tier 1: ubuntu-[x86|x64], windows-[x86|x64], macos-[x64|aarch64]
+        # tier 2: ubuntu-arm-[aarch64]
+        julia-version: ['lts', '1']
+        os: [ubuntu-latest, windows-latest, macos-15-intel]
         julia-arch: [x64]
         include:
           - os: ubuntu-latest # only test one 32-bit job
             julia-version: '1'
             julia-arch: x86
-          - os: macos-latest
+          - os: ubuntu-24.04-arm
             julia-version: '1'
             julia-arch: aarch64
+          - os: macos-latest
+            julia-version: 'lts'
+            julia-arch: aarch64
           - os: macos-latest
             julia-version: '1'
             julia-arch: aarch64
@@ -36,11 +51,9 @@ jobs:
         with:
           version: ${{ matrix.julia-version }}
           arch: ${{ matrix.julia-arch }}
-      - name: Cache artifacts
-        uses: julia-actions/cache@v3
-      - name: "Unit Test"
-        uses: julia-actions/julia-runtest@v1
-
+      - uses: julia-actions/cache@v3
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v6
         with: