switch to julia-actions/cache

Author: Christopher Doris

.github/workflows/tests.yml

@@ -27,16 +27,7 @@ jobs:
         with:
           version: ${{ matrix.jlversion }}
           arch: ${{ matrix.arch }}
-      - uses: actions/cache@v1
-        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/cache@v2
       - name: Build package
         uses: julia-actions/julia-buildpkg@v1
       - name: Run tests