ci: run aqua test as a standalone ci job

.github/workflows/ci.yml

@@ -61,14 +61,38 @@ jobs:
       - run: julia --color=yes .ci/test_and_change_uuid.jl
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
-        env:
-          SPARSEARRAYS_AQUA_TEST: true
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v4
         with:
           file: lcov.info
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true
+  aqua-test:
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
+    permissions: # needed to allow julia-actions/cache to proactively delete old caches that it has created
+      actions: write
+      contents: read
+    strategy:
+      matrix:
+        julia-version:
+          - 'nightly'
+        os:
+          - ubuntu-latest
+        julia-arch:
+          - x64
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: ${{ matrix.julia-version }}
+          arch: ${{ matrix.julia-arch }}
+      - uses: julia-actions/cache@v1
+      - run: julia --color=yes .ci/test_and_change_uuid.jl
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+        env:
+          SPARSEARRAYS_AQUA_TEST: true
   docs:
     runs-on: ubuntu-latest
     steps: