Fix indentations (#14)

Author: bharat619

.github/workflows/publish-gem.yml

@@ -10,21 +10,19 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Ruby 2.7
-      uses: actions/setup-ruby@v1
-      with:
-        ruby-version: 2.7.x
-        bundler-cache: true
-
-    - name: Publish to GPR
-      run: |
+      - uses: actions/checkout@v2
+      - name: Set up Ruby 2.7
+        uses: actions/setup-ruby@v1
+        with:
+          ruby-version: 2.7.x
+      - name: Publish to GPR
+        run: |
           mkdir -p $HOME/.gem
           touch $HOME/.gem/credentials
           chmod 0600 $HOME/.gem/credentials
           printf -- "---\n:github: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
           gem build *.gemspec
           gem push -V --key github --host https://rubygems.pkg.github.com/${OWNER} *.gem
-      env:
-        GEM_HOST_API_KEY: "Bearer ${{secrets.GITHUB_TOKEN}}"
-        OWNER: ${{ github.repository_owner }}
+        env:
+          GEM_HOST_API_KEY: "Bearer ${{secrets.GITHUB_TOKEN}}"
+          OWNER: ${{ github.repository_owner }}