Separate gem release workflow into three steps

1. Bump the gem version (manually triggered)
2. Release the gem to rubygems.org (manually triggered); this also creates and pushes a new GitHub tag
3. Create and publish a new GitHub release (automatically triggered by tag push)

Author: egiurleo

.github/workflows/github-release.yml

@@ -0,0 +1,31 @@
+name: Create GitHub Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  create-release:
+    name: Create GitHub Release
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+
+      - name: Create GitHub release
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            await github.rest.repos.createRelease({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              tag_name: "${{ github.ref }}",
+              name: "${{ github.ref_name }}",
+              generate_release_notes: true
+            })

.github/workflows/release.yml

@@ -28,22 +28,3 @@ jobs:
 
       - name: Release gem on RubyGems.org
         uses: rubygems/release-gem@1c162a739e8b4cb21a676e97b087e8268d8fc40b # v1.1.2
-
-      - name: Get latest tag
-        id: get_tag
-        run: |
-          TAG=$(git describe --tags --abbrev=0)
-          echo "tag=$TAG" >> $GITHUB_OUTPUT
-
-      - name: Create GitHub release
-        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
-        with:
-          github-token: "${{ secrets.GITHUB_TOKEN }}"
-          script: |
-            await github.rest.repos.createRelease({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              tag_name: "refs/tags/${{ steps.get_tag.outputs.tag }}",
-              name: "${{ steps.get_tag.outputs.tag }}",
-              generate_release_notes: true
-            })

.github/workflows/version-bump.yml

@@ -0,0 +1,44 @@
+name: Bump version
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'New version number (e.g., 0.3.9)'
+        required: true
+        type: string
+
+jobs:
+  bump-version:
+    name: Bump version to ${{ inputs.version }}
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@8aeb6ff8030dd539317f8e1769a044873b56ea71 # v1.268.0
+        with:
+          bundler-cache: false
+
+      - name: Update version.rb
+        run: |
+          sed -i 's/VERSION = .*/VERSION = "${{ inputs.version }}"/' lib/rbi/version.rb
+          cat lib/rbi/version.rb
+
+      - name: Bundle install
+        run: bundle install
+
+      - name: Commit version bump
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add lib/rbi/version.rb Gemfile.lock
+          git commit -m "Bump to v${{ inputs.version }}"
+          git push