GitHub Action that uploads builds as release artifacts

This GitHub Action builds Prism for Linux and MacOS and then
uploads the builds to the latest release to be used by clients
such as Sorbet

Author: egiurleo

.github/workflows/build-artifacts.yml

@@ -0,0 +1,39 @@
+name: Build Library Artifacts
+
+concurrency:
+  group: "${{github.workflow}}-${{github.ref}}"
+  cancel-in-progress: true
+
+on:
+  release:
+    types: [created]
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.3'
+        bundler-cache: true
+
+    - name: Build library
+      run: bundle exec rake compile
+
+    - name: Upload to release
+      if: github.event_name == 'release'
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      uses: softprops/action-gh-release@v1
+      with:
+        files: |
+          build/libprism.so
+          build/libprism.dylib