Getting Ruby and Rails versions from endoflife.date

.github/workflows/ci.yml

@@ -4,14 +4,31 @@ on:
     branches: [main]
   pull_request:
 jobs:
+  versions:
+    name: Get latest versions
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        product: ["ruby", "rails"]
+    outputs:
+      ruby: ${{ steps.supported.outputs.ruby }}
+      rails: ${{ steps.supported.outputs.rails }}
+    steps:
+      - id: supported
+        run: |
+          product="${{ matrix.product }}"
+          data=$(curl https://endoflife.date/api/$product.json)
+          supported=$(echo $data | jq '[.[] | select(.eol > (now | strftime("%Y-%m-%d")))]')
+          echo "${product}=$(echo $supported | jq -c 'map(.latest)')" >> $GITHUB_OUTPUT
   test:
-    name: Test on Ruby ${{ matrix.ruby }} and Rails ${{ matrix.rails }}
+    needs: versions
     runs-on: ubuntu-latest
+    name: Test on Ruby ${{ matrix.ruby }} and Rails ${{ matrix.rails }}
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['3.0', '3.1', '3.2', '3.3']
-        rails: ['6.1.0', '7.0.0', '7.1.0']
+        ruby: ${{ fromJSON(needs.versions.outputs.ruby) }}
+        rails: ${{ fromJSON(needs.versions.outputs.rails) }}
     env:
       RAILS_VERSION: ${{ matrix.rails }}
     steps: