update github actions workflows and add gem push workflow

Author: anarchivist

.github/workflows/build.yml

@@ -1,18 +1,30 @@
 name: Build
-on: [ push, pull_request ]
+on: [ push, pull_request, workflow_dispatch ]
 jobs:
   test:
     strategy:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, macos-latest ]
-        ruby: [ '2.7', '3.0' ]
+        ruby: [ '3.3', '3.4' ]
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: ruby/setup-ruby@v1
+      - name: Check out repository
+        uses: actions/checkout@v3
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
-      - run: bundle exec rake
+
+      - name: Run checks
+        run: bundle exec rake
+
+      - name: Upload artifacts
+        if: ${{ always() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: artifacts-${{ matrix.ruby }}-${{ matrix.os }}
+          path: artifacts/**

.github/workflows/gem-push.yml

@@ -0,0 +1,33 @@
+name: Ruby Gem
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    name: Build + Publish
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - uses: actions/checkout@v3
+    
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.3'
+        bundler-cache: true
+
+    - name: Publish to RubyGems
+      run: |
+        mkdir -p $HOME/.gem
+        touch $HOME/.gem/credentials
+        chmod 0600 $HOME/.gem/credentials
+        printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
+        gem build *.gemspec
+        gem push *.gem
+      env:
+        GEM_HOST_API_KEY: "${{secrets.RUBYGEMS_AUTH_TOKEN}}"