Run test_migrate tests on CI

Now that we've resolved the issue with the invalid git repository in the
parent commit, we can run all of the tests in our CI environment.

.github/workflows/docker-deploy.yml

@@ -45,6 +45,5 @@ jobs:
           tags: ${{ env.DEPLOY_NAME }}
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,dest=/tmp/.buildx-cache
-          platforms: linux/amd64, linux/arm64
       - name: Image digest
         run: echo ${{ steps.docker_build.outputs.digest }}

Dockerfile

@@ -32,8 +32,7 @@ COPY --from=builder /usr/local/bundle/ /usr/local/bundle/
 
 RUN apk add \
     bash \
-    git \
-    libc6-compat
+    git
 
 VOLUME /wiki
 WORKDIR /wiki

gollum.gemspec

@@ -20,7 +20,6 @@ Gem::Specification.new do |s|
   s.rdoc_options = ['--charset=UTF-8']
   s.extra_rdoc_files = %w[README.md LICENSE]
 
-  s.add_dependency 'rdoc', '~> 6'
   s.add_dependency 'gollum-lib', '~> 5.1'
   s.add_dependency 'kramdown', '~> 2.3'
   s.add_dependency 'kramdown-parser-gfm', '~> 1.1.0'