Refactor CI configuration for Julia workflows

Author: cormullion

.github/workflows/ci.yml

@@ -7,48 +7,34 @@ on:
     branches:
       - master
     tags: '*'
+# needed for julia-actions/cache to delete old caches
+permissions:
+  actions: write
+  contents: read
 jobs:
   test:
-    name: Julia ${{ matrix.julia-version }} - ${{ matrix.os }} - ${{ matrix.julia-arch }}
+    name: Julia ${{ matrix.julia-version }} - ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
-      fail-fast: false
       matrix:
-        julia-version:
-          - "1.9"
-          - "1"
-        os:
-          - ubuntu-latest
-          - macos-latest
-          - windows-latest
-        julia-arch:
-          - x64
-        exclude:
-          - os: macOS-latest
-            julia-arch: x86
-
+        julia-version: ["lts", "1"]
+        os: [ubuntu-latest, macOS-latest, windows-latest]
     steps:
       - uses: actions/checkout@v7
       - uses: julia-actions/setup-julia@v3
         with:
           version: ${{ matrix.julia-version }}
-          arch: ${{ matrix.julia-arch }}
-      - uses: actions/cache@v6
-        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
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v7
         with:
-          file: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: ./lcov.info
+          name: codecov-umbrella
+          fail_ci_if_error: false
+        if: ${{ matrix.os =='ubuntu-latest' }}
   docs:
     name: Documentation
     runs-on: ubuntu-latest