Update CI.yml

Author: ChrisRackauckas

.github/workflows/CI.yml

@@ -1,36 +1,46 @@
-name: Downgrade
+name: CI
 on:
-  pull_request:
-    branches:
-      - master
-    paths-ignore:
-      - 'docs/**'
   push:
     branches:
-      - master
-    paths-ignore:
-      - 'docs/**'
+      - main
+    tags: ['*']
+  pull_request:
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
 jobs:
   test:
-    runs-on: ubuntu-latest
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
-        group:
-          - Core
-        downgrade_mode: ['alldeps']
-        julia-version: ['1.10']
+        version:
+          - 'lts'
+          - '1'
+          - 'pre'
+        os:
+          - ubuntu-latest
+        arch:
+          - x64
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v2
         with:
-          version: ${{ matrix.julia-version }}
-      - uses: julia-actions/julia-downgrade-compat@v2
-#        if: ${{ matrix.version == '1.6' }}
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+      - uses: julia-actions/julia-downgrade-compat@v1
+        if: ${{ matrix.version == '1.6' }}
         with:
-          skip: Pkg,TOML
+          skip: Pkg, TOML
+      - 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@v5
         with:
-          ALLOW_RERESOLVE: false
-        env:
-          GROUP: ${{ matrix.group }}
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false