Make sure we check out all enough history for gemspec.

Author: simonwo

.github/workflows/main.yml

@@ -18,10 +18,15 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        fetch-tags: true
+
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
         bundler-cache: true
+
     - name: Run the default task
       run: bundle exec rake