[CI] Some improvements (#135)

* add concurrency group
* add timeout
* use `julia-actions/cache`

.github/workflows/CI.yml

@@ -1,14 +1,23 @@
 name: CI
+
 on:
   pull_request:
   push:
     branches:
       - master
     tags: '*'
+
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: always.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 20
     strategy:
       fail-fast: false
       matrix:
@@ -24,20 +33,11 @@ jobs:
           - x64
     steps:
       - uses: actions/checkout@v4
+      - uses: julia-actions/cache@v1
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
-      - uses: actions/cache@v3
-        env:
-          cache-name: cache-artifacts
-        with:
-          path: ~/.julia/artifacts
-          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-test-${{ env.cache-name }}-
-            ${{ runner.os }}-test-
-            ${{ runner.os }}-
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1