fix(ci): Add releaser workflow

.github/workflows/release.yml

@@ -0,0 +1,66 @@
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+name: release-please
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      packages: write
+      pull-requests: write
+    strategy:
+      matrix:
+        ruby: [2.7]
+    steps:
+      - name: Release Please
+        uses: googleapis/release-please-action@v4
+        id: release
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          manifest-file: .release-please-manifest.json
+          config-file: release-please-config.json
+
+      - name: Checkout Repository
+        if: ${{ steps.release.outputs.release_created }}
+        uses: actions/checkout@v4
+
+      - name: Set Up Ruby
+        if: ${{ steps.release.outputs.release_created }}
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+
+      - name: Install Dependencies
+        if: ${{ steps.release.outputs.release_created }}
+        run: bundle install
+
+      - name: Publish to GitHub Releases
+        if: ${{ steps.release.outputs.release_created }}
+        run: |
+          mkdir -p $HOME/.gem
+          touch $HOME/.gem/credentials
+          chmod 0600 $HOME/.gem/credentials
+          printf -- "---\n:github: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
+          gem build *.gemspec
+          gem push --KEY github --host https://rubygems.pkg.github.com/${OWNER} *.gem
+        env:
+          GEM_HOST_API_KEY: "Bearer ${{secrets.GITHUB_TOKEN}}"
+          OWNER: ${{ github.repository_owner }}
+
+      - name: Publish to RubyGems
+        if: ${{ steps.release.outputs.release_created }}
+        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.SIMPLE_FORM_THEME_API_KEY }}"

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.1.0"
+}

release-please-config.json

@@ -0,0 +1,12 @@
+{
+  "packages": {
+    ".": {
+      "release-type": "ruby",
+      "version-file": "lib/simple_form/theme/version.rb",
+      "extra-files": [
+        "CHANGELOG.md",
+        "Gemfile.lock"
+      ]
+    }
+  }
+}