Run tests on more Ruby versions and platforms

This is lifted from Ruby's base64 gem's GitHub workflow and depends on
Ruby's on version code which should give us better coverage.

https://github.com/ruby/base64/blob/master/.github/workflows/test.yml

.github/workflows/main.yml

@@ -1,4 +1,4 @@
-name: Berns
+name: Test Suite
 
 concurrency:
   cancel-in-progress: true
@@ -7,12 +7,21 @@ concurrency:
 on: [push, pull_request]
 
 jobs:
+  ruby-versions:
+    uses: ruby/actions/.github/workflows/ruby_versions.yml@master
+    with:
+      min_version: 2.7
+
   test:
+    needs: ruby-versions
+    name: Test (${{ matrix.ruby }} / ${{ matrix.os }})
     strategy:
-      fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest]
-        ruby-version: [3.2, 3.1, '3.0', 2.7]
+        ruby: ${{ fromJson(needs.ruby-versions.outputs.versions) }}
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        exclude:
+          - { os: windows-latest, ruby: truffleruby-head }
+          - { os: windows-latest, ruby: truffleruby }
 
     runs-on: ${{ matrix.os }}
     steps: