Try to fix CI.

.github/workflows/ci.yml

@@ -19,7 +19,9 @@ jobs:
         arch: [x64]
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/setup-julia@latest
+        with:
+          path: "GPUArrays"
+      - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
@@ -33,11 +35,14 @@ jobs:
             ${{ runner.os }}-test-${{ env.cache-name }}-
             ${{ runner.os }}-test-
             ${{ runner.os }}-
-      - uses: julia-actions/julia-buildpkg@latest
-      - run: |
-          git config --global user.name Tester
-          git config --global user.email [email protected]
-      - uses: julia-actions/julia-runtest@latest
+      - name: Develop subpackages
+        run: |
+          julia --project -e '
+            using Pkg
+            ENV["JULIA_PKG_DEVDIR"] = dirname(pwd())
+            Pkg.develop(["GPUArraysCore", "JLArrays"])'
+      - name: Test
+        run: julia --project -e 'using Pkg; Pkg.test(; coverage=true)'
         continue-on-error: ${{ matrix.version == 'nightly' }}
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v3
@@ -48,7 +53,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/setup-julia@latest
+      - uses: julia-actions/setup-julia@v1
         with:
           version: '1.8'
       - name: Install dependencies