ci: update github actions

Author: inkydragon

.github/workflows/CI.yml

@@ -27,22 +27,10 @@ jobs:
           - os: macOS-latest
             arch: x86
     steps:
-      - uses: actions/checkout@v2
-      - uses: julia-actions/setup-julia@v1
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
-      - uses: actions/cache@v2
-        env:
-          cache-name: cache-artifacts
-        with:
-          path: ~/.julia/artifacts
-          key: ${{ runner.os }}-${{ matrix.arch }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-${{ matrix.arch }}-test-${{ env.cache-name }}-
-            ${{ runner.os }}-${{ matrix.arch }}-test-
-            ${{ runner.os }}-${{ matrix.arch }}-
-            ${{ runner.os }}-
+      - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
-